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Finding the Fourth Proportional to 15,586.62, 21,508.50 and 8,872.93

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Solution

The fourth proportional to 15,586.62, 21,508.50 and 8,872.93 is: 12,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.62 : 21,508.50 = 8,872.93 : x
  2. Step 2: Convert to fraction form
    15,586.62/21,508.50 = 8,872.93/x
  3. Step 3: Cross multiply
    15,586.62x = 21,508.50 × 8,872.93
  4. Step 4: Simplify right side
    15,586.62x = 190,843,414.91
  5. Step 5: Solve for x
    x = 190,843,414.91/15,586.62
  6. Step 6: Final answer
    x = 12,244.05

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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.