Home / 12,759.74-17,610.35-9,186.52

Finding the Fourth Proportional to 12,759.74, 17,610.35 and 9,186.52

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Solution

The fourth proportional to 12,759.74, 17,610.35 and 9,186.52 is: 12,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.74 : 17,610.35 = 9,186.52 : x
  2. Step 2: Convert to fraction form
    12,759.74/17,610.35 = 9,186.52/x
  3. Step 3: Cross multiply
    12,759.74x = 17,610.35 × 9,186.52
  4. Step 4: Simplify right side
    12,759.74x = 161,777,877.46
  5. Step 5: Solve for x
    x = 161,777,877.46/12,759.74
  6. Step 6: Final answer
    x = 12,678.78

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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.