Home / 10,422.08-15,635.38-5,981.80

Finding the Fourth Proportional to 10,422.08, 15,635.38 and 5,981.80

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Solution

The fourth proportional to 10,422.08, 15,635.38 and 5,981.80 is: 8,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.08 : 15,635.38 = 5,981.80 : x
  2. Step 2: Convert to fraction form
    10,422.08/15,635.38 = 5,981.80/x
  3. Step 3: Cross multiply
    10,422.08x = 15,635.38 × 5,981.80
  4. Step 4: Simplify right side
    10,422.08x = 93,527,716.08
  5. Step 5: Solve for x
    x = 93,527,716.08/10,422.08
  6. Step 6: Final answer
    x = 8,974.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.