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Finding the Fourth Proportional to 8,671.38, 13,009.23 and 2,515.38

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Solution

The fourth proportional to 8,671.38, 13,009.23 and 2,515.38 is: 3,773.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.38 : 13,009.23 = 2,515.38 : x
  2. Step 2: Convert to fraction form
    8,671.38/13,009.23 = 2,515.38/x
  3. Step 3: Cross multiply
    8,671.38x = 13,009.23 × 2,515.38
  4. Step 4: Simplify right side
    8,671.38x = 32,723,079.33
  5. Step 5: Solve for x
    x = 32,723,079.33/8,671.38
  6. Step 6: Final answer
    x = 3,773.69

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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.