Home / 18,488.14-25,532.28-11,776.78

Finding the Fourth Proportional to 18,488.14, 25,532.28 and 11,776.78

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Solution

The fourth proportional to 18,488.14, 25,532.28 and 11,776.78 is: 16,263.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.14 : 25,532.28 = 11,776.78 : x
  2. Step 2: Convert to fraction form
    18,488.14/25,532.28 = 11,776.78/x
  3. Step 3: Cross multiply
    18,488.14x = 25,532.28 × 11,776.78
  4. Step 4: Simplify right side
    18,488.14x = 300,688,044.46
  5. Step 5: Solve for x
    x = 300,688,044.46/18,488.14
  6. Step 6: Final answer
    x = 16,263.83

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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.