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Finding the Fourth Proportional to 8,453.39, 11,665.59 and 4,727.39

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Solution

The fourth proportional to 8,453.39, 11,665.59 and 4,727.39 is: 6,523.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.39 : 11,665.59 = 4,727.39 : x
  2. Step 2: Convert to fraction form
    8,453.39/11,665.59 = 4,727.39/x
  3. Step 3: Cross multiply
    8,453.39x = 11,665.59 × 4,727.39
  4. Step 4: Simplify right side
    8,453.39x = 55,147,735.18
  5. Step 5: Solve for x
    x = 55,147,735.18/8,453.39
  6. Step 6: Final answer
    x = 6,523.75

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,454.39, 11,666.97 and 4,728.39
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.