Home / 15,732.27-21,708-9,016.56

Finding the Fourth Proportional to 15,732.27, 21,708 and 9,016.56

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Solution

The fourth proportional to 15,732.27, 21,708 and 9,016.56 is: 12,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,732.27 : 21,708 = 9,016.56 : x
  2. Step 2: Convert to fraction form
    15,732.27/21,708 = 9,016.56/x
  3. Step 3: Cross multiply
    15,732.27x = 21,708 × 9,016.56
  4. Step 4: Simplify right side
    15,732.27x = 195,731,484.48
  5. Step 5: Solve for x
    x = 195,731,484.48/15,732.27
  6. Step 6: Final answer
    x = 12,441.40

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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.