Home / 16,123.80-22,251.60-9,410.40

Finding the Fourth Proportional to 16,123.80, 22,251.60 and 9,410.40

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Solution

The fourth proportional to 16,123.80, 22,251.60 and 9,410.40 is: 12,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,123.80 : 22,251.60 = 9,410.40 : x
  2. Step 2: Convert to fraction form
    16,123.80/22,251.60 = 9,410.40/x
  3. Step 3: Cross multiply
    16,123.80x = 22,251.60 × 9,410.40
  4. Step 4: Simplify right side
    16,123.80x = 209,396,456.64
  5. Step 5: Solve for x
    x = 209,396,456.64/16,123.80
  6. Step 6: Final answer
    x = 12,986.79

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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.