Home / 15,946.20-22,005.90-8,872.56

Finding the Fourth Proportional to 15,946.20, 22,005.90 and 8,872.56

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Solution

The fourth proportional to 15,946.20, 22,005.90 and 8,872.56 is: 12,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,946.20 : 22,005.90 = 8,872.56 : x
  2. Step 2: Convert to fraction form
    15,946.20/22,005.90 = 8,872.56/x
  3. Step 3: Cross multiply
    15,946.20x = 22,005.90 × 8,872.56
  4. Step 4: Simplify right side
    15,946.20x = 195,248,668.10
  5. Step 5: Solve for x
    x = 195,248,668.10/15,946.20
  6. Step 6: Final answer
    x = 12,244.21

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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.