Home / 10,118.79-15,177.11-3,192.75

Finding the Fourth Proportional to 10,118.79, 15,177.11 and 3,192.75

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Solution

The fourth proportional to 10,118.79, 15,177.11 and 3,192.75 is: 4,788.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.79 : 15,177.11 = 3,192.75 : x
  2. Step 2: Convert to fraction form
    10,118.79/15,177.11 = 3,192.75/x
  3. Step 3: Cross multiply
    10,118.79x = 15,177.11 × 3,192.75
  4. Step 4: Simplify right side
    10,118.79x = 48,456,701.99
  5. Step 5: Solve for x
    x = 48,456,701.99/10,118.79
  6. Step 6: Final answer
    x = 4,788.78

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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.