Home / 16,231.28-22,399.44-9,521.74

Finding the Fourth Proportional to 16,231.28, 22,399.44 and 9,521.74

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Solution

The fourth proportional to 16,231.28, 22,399.44 and 9,521.74 is: 13,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,231.28 : 22,399.44 = 9,521.74 : x
  2. Step 2: Convert to fraction form
    16,231.28/22,399.44 = 9,521.74/x
  3. Step 3: Cross multiply
    16,231.28x = 22,399.44 × 9,521.74
  4. Step 4: Simplify right side
    16,231.28x = 213,281,531.83
  5. Step 5: Solve for x
    x = 213,281,531.83/16,231.28
  6. Step 6: Final answer
    x = 13,140.16

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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.