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Finding the Fourth Proportional to 9,493.66, 12,987.39 and 9,453.68

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Solution

The fourth proportional to 9,493.66, 12,987.39 and 9,453.68 is: 12,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,493.66 : 12,987.39 = 9,453.68 : x
  2. Step 2: Convert to fraction form
    9,493.66/12,987.39 = 9,453.68/x
  3. Step 3: Cross multiply
    9,493.66x = 12,987.39 × 9,453.68
  4. Step 4: Simplify right side
    9,493.66x = 122,778,697.01
  5. Step 5: Solve for x
    x = 122,778,697.01/9,493.66
  6. Step 6: Final answer
    x = 12,932.70

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.