Home / 15,937.92-21,993.78-8,864.20

Finding the Fourth Proportional to 15,937.92, 21,993.78 and 8,864.20

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Solution

The fourth proportional to 15,937.92, 21,993.78 and 8,864.20 is: 12,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,937.92 : 21,993.78 = 8,864.20 : x
  2. Step 2: Convert to fraction form
    15,937.92/21,993.78 = 8,864.20/x
  3. Step 3: Cross multiply
    15,937.92x = 21,993.78 × 8,864.20
  4. Step 4: Simplify right side
    15,937.92x = 194,957,264.68
  5. Step 5: Solve for x
    x = 194,957,264.68/15,937.92
  6. Step 6: Final answer
    x = 12,232.29

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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.