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Finding the Fourth Proportional to 10,642.17, 15,962.27 and 5,018.55

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Solution

The fourth proportional to 10,642.17, 15,962.27 and 5,018.55 is: 7,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.17 : 15,962.27 = 5,018.55 : x
  2. Step 2: Convert to fraction form
    10,642.17/15,962.27 = 5,018.55/x
  3. Step 3: Cross multiply
    10,642.17x = 15,962.27 × 5,018.55
  4. Step 4: Simplify right side
    10,642.17x = 80,107,450.11
  5. Step 5: Solve for x
    x = 80,107,450.11/10,642.17
  6. Step 6: Final answer
    x = 7,527.36

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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.