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Finding the Fourth Proportional to 8,587.62, 12,864.66 and 5,918.73

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Solution

The fourth proportional to 8,587.62, 12,864.66 and 5,918.73 is: 8,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.62 : 12,864.66 = 5,918.73 : x
  2. Step 2: Convert to fraction form
    8,587.62/12,864.66 = 5,918.73/x
  3. Step 3: Cross multiply
    8,587.62x = 12,864.66 × 5,918.73
  4. Step 4: Simplify right side
    8,587.62x = 76,142,512.16
  5. Step 5: Solve for x
    x = 76,142,512.16/8,587.62
  6. Step 6: Final answer
    x = 8,866.54

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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.