Home / 9,144.75-12,619.85-4,953.09

Finding the Fourth Proportional to 9,144.75, 12,619.85 and 4,953.09

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Solution

The fourth proportional to 9,144.75, 12,619.85 and 4,953.09 is: 6,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.75 : 12,619.85 = 4,953.09 : x
  2. Step 2: Convert to fraction form
    9,144.75/12,619.85 = 4,953.09/x
  3. Step 3: Cross multiply
    9,144.75x = 12,619.85 × 4,953.09
  4. Step 4: Simplify right side
    9,144.75x = 62,507,252.84
  5. Step 5: Solve for x
    x = 62,507,252.84/9,144.75
  6. Step 6: Final answer
    x = 6,835.32

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Half scale
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Double scale
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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.