Home / 12,177.88-18,253.45-7,955.92

Finding the Fourth Proportional to 12,177.88, 18,253.45 and 7,955.92

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Solution

The fourth proportional to 12,177.88, 18,253.45 and 7,955.92 is: 11,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.88 : 18,253.45 = 7,955.92 : x
  2. Step 2: Convert to fraction form
    12,177.88/18,253.45 = 7,955.92/x
  3. Step 3: Cross multiply
    12,177.88x = 18,253.45 × 7,955.92
  4. Step 4: Simplify right side
    12,177.88x = 145,223,020.69
  5. Step 5: Solve for x
    x = 145,223,020.69/12,177.88
  6. Step 6: Final answer
    x = 11,925.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.