Home / 11,531.16-15,914.20-7,057.88

Finding the Fourth Proportional to 11,531.16, 15,914.20 and 7,057.88

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Solution

The fourth proportional to 11,531.16, 15,914.20 and 7,057.88 is: 9,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.16 : 15,914.20 = 7,057.88 : x
  2. Step 2: Convert to fraction form
    11,531.16/15,914.20 = 7,057.88/x
  3. Step 3: Cross multiply
    11,531.16x = 15,914.20 × 7,057.88
  4. Step 4: Simplify right side
    11,531.16x = 112,320,513.90
  5. Step 5: Solve for x
    x = 112,320,513.90/11,531.16
  6. Step 6: Final answer
    x = 9,740.61

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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.