Home / 9,118.31-13,677.19-3,780.95

Finding the Fourth Proportional to 9,118.31, 13,677.19 and 3,780.95

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Solution

The fourth proportional to 9,118.31, 13,677.19 and 3,780.95 is: 5,671.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.31 : 13,677.19 = 3,780.95 : x
  2. Step 2: Convert to fraction form
    9,118.31/13,677.19 = 3,780.95/x
  3. Step 3: Cross multiply
    9,118.31x = 13,677.19 × 3,780.95
  4. Step 4: Simplify right side
    9,118.31x = 51,712,693.69
  5. Step 5: Solve for x
    x = 51,712,693.69/9,118.31
  6. Step 6: Final answer
    x = 5,671.31

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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.