Home / 15,982.88-22,056.17-8,909.28

Finding the Fourth Proportional to 15,982.88, 22,056.17 and 8,909.28

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Solution

The fourth proportional to 15,982.88, 22,056.17 and 8,909.28 is: 12,294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.88 : 22,056.17 = 8,909.28 : x
  2. Step 2: Convert to fraction form
    15,982.88/22,056.17 = 8,909.28/x
  3. Step 3: Cross multiply
    15,982.88x = 22,056.17 × 8,909.28
  4. Step 4: Simplify right side
    15,982.88x = 196,504,549.71
  5. Step 5: Solve for x
    x = 196,504,549.71/15,982.88
  6. Step 6: Final answer
    x = 12,294.69

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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.