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Finding the Fourth Proportional to 8,671.33, 13,001.52 and 4,778.47

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Solution

The fourth proportional to 8,671.33, 13,001.52 and 4,778.47 is: 7,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.33 : 13,001.52 = 4,778.47 : x
  2. Step 2: Convert to fraction form
    8,671.33/13,001.52 = 4,778.47/x
  3. Step 3: Cross multiply
    8,671.33x = 13,001.52 × 4,778.47
  4. Step 4: Simplify right side
    8,671.33x = 62,127,373.27
  5. Step 5: Solve for x
    x = 62,127,373.27/8,671.33
  6. Step 6: Final answer
    x = 7,164.69

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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.