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Finding the Fourth Proportional to 15,064.31, 20,788.18 and 8,350.04

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Solution

The fourth proportional to 15,064.31, 20,788.18 and 8,350.04 is: 11,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064.31 : 20,788.18 = 8,350.04 : x
  2. Step 2: Convert to fraction form
    15,064.31/20,788.18 = 8,350.04/x
  3. Step 3: Cross multiply
    15,064.31x = 20,788.18 × 8,350.04
  4. Step 4: Simplify right side
    15,064.31x = 173,582,165.62
  5. Step 5: Solve for x
    x = 173,582,165.62/15,064.31
  6. Step 6: Final answer
    x = 11,522.74

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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.