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Finding the Fourth Proportional to 8,812.30, 12,157.82 and 5,032.74

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Solution

The fourth proportional to 8,812.30, 12,157.82 and 5,032.74 is: 6,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.30 : 12,157.82 = 5,032.74 : x
  2. Step 2: Convert to fraction form
    8,812.30/12,157.82 = 5,032.74/x
  3. Step 3: Cross multiply
    8,812.30x = 12,157.82 × 5,032.74
  4. Step 4: Simplify right side
    8,812.30x = 61,187,147.03
  5. Step 5: Solve for x
    x = 61,187,147.03/8,812.30
  6. Step 6: Final answer
    x = 6,943.38

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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.