Home / 12,320-17,001.60-7,352

Finding the Fourth Proportional to 12,320, 17,001.60 and 7,352

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Solution

The fourth proportional to 12,320, 17,001.60 and 7,352 is: 10,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320 : 17,001.60 = 7,352 : x
  2. Step 2: Convert to fraction form
    12,320/17,001.60 = 7,352/x
  3. Step 3: Cross multiply
    12,320x = 17,001.60 × 7,352
  4. Step 4: Simplify right side
    12,320x = 124,995,763.20
  5. Step 5: Solve for x
    x = 124,995,763.20/12,320
  6. Step 6: Final answer
    x = 10,145.76

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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.