Home / 8,531.94-12,781.31-4,822.95

Finding the Fourth Proportional to 8,531.94, 12,781.31 and 4,822.95

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Solution

The fourth proportional to 8,531.94, 12,781.31 and 4,822.95 is: 7,225.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.94 : 12,781.31 = 4,822.95 : x
  2. Step 2: Convert to fraction form
    8,531.94/12,781.31 = 4,822.95/x
  3. Step 3: Cross multiply
    8,531.94x = 12,781.31 × 4,822.95
  4. Step 4: Simplify right side
    8,531.94x = 61,643,594.95
  5. Step 5: Solve for x
    x = 61,643,594.95/8,531.94
  6. Step 6: Final answer
    x = 7,225.04

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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.