Home / 12,399.12-17,108.97-7,092.93

Finding the Fourth Proportional to 12,399.12, 17,108.97 and 7,092.93

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Solution

The fourth proportional to 12,399.12, 17,108.97 and 7,092.93 is: 9,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.12 : 17,108.97 = 7,092.93 : x
  2. Step 2: Convert to fraction form
    12,399.12/17,108.97 = 7,092.93/x
  3. Step 3: Cross multiply
    12,399.12x = 17,108.97 × 7,092.93
  4. Step 4: Simplify right side
    12,399.12x = 121,352,726.58
  5. Step 5: Solve for x
    x = 121,352,726.58/12,399.12
  6. Step 6: Final answer
    x = 9,787.20

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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.