Home / 11,987.28-16,549.53-10,657.31

Finding the Fourth Proportional to 11,987.28, 16,549.53 and 10,657.31

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Solution

The fourth proportional to 11,987.28, 16,549.53 and 10,657.31 is: 14,713.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.28 : 16,549.53 = 10,657.31 : x
  2. Step 2: Convert to fraction form
    11,987.28/16,549.53 = 10,657.31/x
  3. Step 3: Cross multiply
    11,987.28x = 16,549.53 × 10,657.31
  4. Step 4: Simplify right side
    11,987.28x = 176,373,428.78
  5. Step 5: Solve for x
    x = 176,373,428.78/11,987.28
  6. Step 6: Final answer
    x = 14,713.38

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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.