Home / 12,393.02-17,102.40-7,087.97

Finding the Fourth Proportional to 12,393.02, 17,102.40 and 7,087.97

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Solution

The fourth proportional to 12,393.02, 17,102.40 and 7,087.97 is: 9,781.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.02 : 17,102.40 = 7,087.97 : x
  2. Step 2: Convert to fraction form
    12,393.02/17,102.40 = 7,087.97/x
  3. Step 3: Cross multiply
    12,393.02x = 17,102.40 × 7,087.97
  4. Step 4: Simplify right side
    12,393.02x = 121,221,298.13
  5. Step 5: Solve for x
    x = 121,221,298.13/12,393.02
  6. Step 6: Final answer
    x = 9,781.42

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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.