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Finding the Fourth Proportional to 8,567.78, 12,845.81 and 4,565.76

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Solution

The fourth proportional to 8,567.78, 12,845.81 and 4,565.76 is: 6,845.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.78 : 12,845.81 = 4,565.76 : x
  2. Step 2: Convert to fraction form
    8,567.78/12,845.81 = 4,565.76/x
  3. Step 3: Cross multiply
    8,567.78x = 12,845.81 × 4,565.76
  4. Step 4: Simplify right side
    8,567.78x = 58,650,862.64
  5. Step 5: Solve for x
    x = 58,650,862.64/8,567.78
  6. Step 6: Final answer
    x = 6,845.52

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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.