Home / 16,429.70-22,664.85-9,712.10

Finding the Fourth Proportional to 16,429.70, 22,664.85 and 9,712.10

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Solution

The fourth proportional to 16,429.70, 22,664.85 and 9,712.10 is: 13,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,429.70 : 22,664.85 = 9,712.10 : x
  2. Step 2: Convert to fraction form
    16,429.70/22,664.85 = 9,712.10/x
  3. Step 3: Cross multiply
    16,429.70x = 22,664.85 × 9,712.10
  4. Step 4: Simplify right side
    16,429.70x = 220,123,289.69
  5. Step 5: Solve for x
    x = 220,123,289.69/16,429.70
  6. Step 6: Final answer
    x = 13,397.89

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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.