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Finding the Fourth Proportional to 15,158.56, 22,738.56 and 4,771.12

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Solution

The fourth proportional to 15,158.56, 22,738.56 and 4,771.12 is: 7,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158.56 : 22,738.56 = 4,771.12 : x
  2. Step 2: Convert to fraction form
    15,158.56/22,738.56 = 4,771.12/x
  3. Step 3: Cross multiply
    15,158.56x = 22,738.56 × 4,771.12
  4. Step 4: Simplify right side
    15,158.56x = 108,488,398.39
  5. Step 5: Solve for x
    x = 108,488,398.39/15,158.56
  6. Step 6: Final answer
    x = 7,156.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.