Home / 18,535.17-25,578.96-10,981.38

Finding the Fourth Proportional to 18,535.17, 25,578.96 and 10,981.38

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Solution

The fourth proportional to 18,535.17, 25,578.96 and 10,981.38 is: 15,154.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.17 : 25,578.96 = 10,981.38 : x
  2. Step 2: Convert to fraction form
    18,535.17/25,578.96 = 10,981.38/x
  3. Step 3: Cross multiply
    18,535.17x = 25,578.96 × 10,981.38
  4. Step 4: Simplify right side
    18,535.17x = 280,892,279.76
  5. Step 5: Solve for x
    x = 280,892,279.76/18,535.17
  6. Step 6: Final answer
    x = 15,154.56

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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.