Home / 16,581.50-22,901.91-10,982.78

Finding the Fourth Proportional to 16,581.50, 22,901.91 and 10,982.78

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Solution

The fourth proportional to 16,581.50, 22,901.91 and 10,982.78 is: 15,169.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,581.50 : 22,901.91 = 10,982.78 : x
  2. Step 2: Convert to fraction form
    16,581.50/22,901.91 = 10,982.78/x
  3. Step 3: Cross multiply
    16,581.50x = 22,901.91 × 10,982.78
  4. Step 4: Simplify right side
    16,581.50x = 251,526,639.11
  5. Step 5: Solve for x
    x = 251,526,639.11/16,581.50
  6. Step 6: Final answer
    x = 15,169.11

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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.