Home / 9,331.19-12,877.04-5,139.44

Finding the Fourth Proportional to 9,331.19, 12,877.04 and 5,139.44

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Solution

The fourth proportional to 9,331.19, 12,877.04 and 5,139.44 is: 7,092.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.19 : 12,877.04 = 5,139.44 : x
  2. Step 2: Convert to fraction form
    9,331.19/12,877.04 = 5,139.44/x
  3. Step 3: Cross multiply
    9,331.19x = 12,877.04 × 5,139.44
  4. Step 4: Simplify right side
    9,331.19x = 66,180,774.46
  5. Step 5: Solve for x
    x = 66,180,774.46/9,331.19
  6. Step 6: Final answer
    x = 7,092.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.