Home / 16,449.04-22,701.12-9,731.28

Finding the Fourth Proportional to 16,449.04, 22,701.12 and 9,731.28

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Solution

The fourth proportional to 16,449.04, 22,701.12 and 9,731.28 is: 13,430.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,449.04 : 22,701.12 = 9,731.28 : x
  2. Step 2: Convert to fraction form
    16,449.04/22,701.12 = 9,731.28/x
  3. Step 3: Cross multiply
    16,449.04x = 22,701.12 × 9,731.28
  4. Step 4: Simplify right side
    16,449.04x = 220,910,955.03
  5. Step 5: Solve for x
    x = 220,910,955.03/16,449.04
  6. Step 6: Final answer
    x = 13,430.02

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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.