Home / 18,461.40-25,488.92-11,398.20

Finding the Fourth Proportional to 18,461.40, 25,488.92 and 11,398.20

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Solution

The fourth proportional to 18,461.40, 25,488.92 and 11,398.20 is: 15,737.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.40 : 25,488.92 = 11,398.20 : x
  2. Step 2: Convert to fraction form
    18,461.40/25,488.92 = 11,398.20/x
  3. Step 3: Cross multiply
    18,461.40x = 25,488.92 × 11,398.20
  4. Step 4: Simplify right side
    18,461.40x = 290,527,807.94
  5. Step 5: Solve for x
    x = 290,527,807.94/18,461.40
  6. Step 6: Final answer
    x = 15,737.04

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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.