Home / 12,747.08-17,591.19-7,442.12

Finding the Fourth Proportional to 12,747.08, 17,591.19 and 7,442.12

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Solution

The fourth proportional to 12,747.08, 17,591.19 and 7,442.12 is: 10,270.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.08 : 17,591.19 = 7,442.12 : x
  2. Step 2: Convert to fraction form
    12,747.08/17,591.19 = 7,442.12/x
  3. Step 3: Cross multiply
    12,747.08x = 17,591.19 × 7,442.12
  4. Step 4: Simplify right side
    12,747.08x = 130,915,746.92
  5. Step 5: Solve for x
    x = 130,915,746.92/12,747.08
  6. Step 6: Final answer
    x = 10,270.25

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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.