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Finding the Fourth Proportional to 8,751.42, 13,115.97 and 5,630.22

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Solution

The fourth proportional to 8,751.42, 13,115.97 and 5,630.22 is: 8,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.42 : 13,115.97 = 5,630.22 : x
  2. Step 2: Convert to fraction form
    8,751.42/13,115.97 = 5,630.22/x
  3. Step 3: Cross multiply
    8,751.42x = 13,115.97 × 5,630.22
  4. Step 4: Simplify right side
    8,751.42x = 73,845,796.61
  5. Step 5: Solve for x
    x = 73,845,796.61/8,751.42
  6. Step 6: Final answer
    x = 8,438.15

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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.