Home / 16,105.80-22,230.63-9,731.40

Finding the Fourth Proportional to 16,105.80, 22,230.63 and 9,731.40

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Solution

The fourth proportional to 16,105.80, 22,230.63 and 9,731.40 is: 13,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,105.80 : 22,230.63 = 9,731.40 : x
  2. Step 2: Convert to fraction form
    16,105.80/22,230.63 = 9,731.40/x
  3. Step 3: Cross multiply
    16,105.80x = 22,230.63 × 9,731.40
  4. Step 4: Simplify right side
    16,105.80x = 216,335,152.78
  5. Step 5: Solve for x
    x = 216,335,152.78/16,105.80
  6. Step 6: Final answer
    x = 13,432.13

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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.