Home / 15,334.68-21,158.10-8,618.97

Finding the Fourth Proportional to 15,334.68, 21,158.10 and 8,618.97

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Solution

The fourth proportional to 15,334.68, 21,158.10 and 8,618.97 is: 11,892.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.68 : 21,158.10 = 8,618.97 : x
  2. Step 2: Convert to fraction form
    15,334.68/21,158.10 = 8,618.97/x
  3. Step 3: Cross multiply
    15,334.68x = 21,158.10 × 8,618.97
  4. Step 4: Simplify right side
    15,334.68x = 182,361,029.16
  5. Step 5: Solve for x
    x = 182,361,029.16/15,334.68
  6. Step 6: Final answer
    x = 11,892.07

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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.