Home / 15,882.35-21,916.10-8,808.62

Finding the Fourth Proportional to 15,882.35, 21,916.10 and 8,808.62

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Solution

The fourth proportional to 15,882.35, 21,916.10 and 8,808.62 is: 12,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,882.35 : 21,916.10 = 8,808.62 : x
  2. Step 2: Convert to fraction form
    15,882.35/21,916.10 = 8,808.62/x
  3. Step 3: Cross multiply
    15,882.35x = 21,916.10 × 8,808.62
  4. Step 4: Simplify right side
    15,882.35x = 193,050,552.74
  5. Step 5: Solve for x
    x = 193,050,552.74/15,882.35
  6. Step 6: Final answer
    x = 12,155.04

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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.