Home / 11,431.12-15,773.52-6,715.30

Finding the Fourth Proportional to 11,431.12, 15,773.52 and 6,715.30

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Solution

The fourth proportional to 11,431.12, 15,773.52 and 6,715.30 is: 9,266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.12 : 15,773.52 = 6,715.30 : x
  2. Step 2: Convert to fraction form
    11,431.12/15,773.52 = 6,715.30/x
  3. Step 3: Cross multiply
    11,431.12x = 15,773.52 × 6,715.30
  4. Step 4: Simplify right side
    11,431.12x = 105,923,918.86
  5. Step 5: Solve for x
    x = 105,923,918.86/11,431.12
  6. Step 6: Final answer
    x = 9,266.28

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.