Home / 8,781.40-13,158.82-3,848.28

Finding the Fourth Proportional to 8,781.40, 13,158.82 and 3,848.28

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Solution

The fourth proportional to 8,781.40, 13,158.82 and 3,848.28 is: 5,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.40 : 13,158.82 = 3,848.28 : x
  2. Step 2: Convert to fraction form
    8,781.40/13,158.82 = 3,848.28/x
  3. Step 3: Cross multiply
    8,781.40x = 13,158.82 × 3,848.28
  4. Step 4: Simplify right side
    8,781.40x = 50,638,823.83
  5. Step 5: Solve for x
    x = 50,638,823.83/8,781.40
  6. Step 6: Final answer
    x = 5,766.60

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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.