Home / 16,400.79-22,629.20-9,331.11

Finding the Fourth Proportional to 16,400.79, 22,629.20 and 9,331.11

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Solution

The fourth proportional to 16,400.79, 22,629.20 and 9,331.11 is: 12,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,400.79 : 22,629.20 = 9,331.11 : x
  2. Step 2: Convert to fraction form
    16,400.79/22,629.20 = 9,331.11/x
  3. Step 3: Cross multiply
    16,400.79x = 22,629.20 × 9,331.11
  4. Step 4: Simplify right side
    16,400.79x = 211,155,554.41
  5. Step 5: Solve for x
    x = 211,155,554.41/16,400.79
  6. Step 6: Final answer
    x = 12,874.72

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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.