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Finding the Fourth Proportional to 7,517, 10,372.88 and 4,159.56

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Solution

The fourth proportional to 7,517, 10,372.88 and 4,159.56 is: 5,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,517 : 10,372.88 = 4,159.56 : x
  2. Step 2: Convert to fraction form
    7,517/10,372.88 = 4,159.56/x
  3. Step 3: Cross multiply
    7,517x = 10,372.88 × 4,159.56
  4. Step 4: Simplify right side
    7,517x = 43,146,616.73
  5. Step 5: Solve for x
    x = 43,146,616.73/7,517
  6. Step 6: Final answer
    x = 5,739.87

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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.