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Finding the Fourth Proportional to 15,110.28, 20,849.67 and 8,737.47

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Solution

The fourth proportional to 15,110.28, 20,849.67 and 8,737.47 is: 12,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.28 : 20,849.67 = 8,737.47 : x
  2. Step 2: Convert to fraction form
    15,110.28/20,849.67 = 8,737.47/x
  3. Step 3: Cross multiply
    15,110.28x = 20,849.67 × 8,737.47
  4. Step 4: Simplify right side
    15,110.28x = 182,173,261.89
  5. Step 5: Solve for x
    x = 182,173,261.89/15,110.28
  6. Step 6: Final answer
    x = 12,056.25

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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.