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Finding the Fourth Proportional to 7,418.52, 11,127.78 and 3,962.52

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Solution

The fourth proportional to 7,418.52, 11,127.78 and 3,962.52 is: 5,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.52 : 11,127.78 = 3,962.52 : x
  2. Step 2: Convert to fraction form
    7,418.52/11,127.78 = 3,962.52/x
  3. Step 3: Cross multiply
    7,418.52x = 11,127.78 × 3,962.52
  4. Step 4: Simplify right side
    7,418.52x = 44,094,050.81
  5. Step 5: Solve for x
    x = 44,094,050.81/7,418.52
  6. Step 6: Final answer
    x = 5,943.78

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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.