Home / 9,118.88-12,583.30-5,140.97

Finding the Fourth Proportional to 9,118.88, 12,583.30 and 5,140.97

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Solution

The fourth proportional to 9,118.88, 12,583.30 and 5,140.97 is: 7,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.88 : 12,583.30 = 5,140.97 : x
  2. Step 2: Convert to fraction form
    9,118.88/12,583.30 = 5,140.97/x
  3. Step 3: Cross multiply
    9,118.88x = 12,583.30 × 5,140.97
  4. Step 4: Simplify right side
    9,118.88x = 64,690,348.86
  5. Step 5: Solve for x
    x = 64,690,348.86/9,118.88
  6. Step 6: Final answer
    x = 7,094.11

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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.