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Finding the Fourth Proportional to 8,967.51, 12,375.23 and 4,988.79

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Solution

The fourth proportional to 8,967.51, 12,375.23 and 4,988.79 is: 6,884.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.51 : 12,375.23 = 4,988.79 : x
  2. Step 2: Convert to fraction form
    8,967.51/12,375.23 = 4,988.79/x
  3. Step 3: Cross multiply
    8,967.51x = 12,375.23 × 4,988.79
  4. Step 4: Simplify right side
    8,967.51x = 61,737,398.73
  5. Step 5: Solve for x
    x = 61,737,398.73/8,967.51
  6. Step 6: Final answer
    x = 6,884.56

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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.