Home / 15,177.88-20,944.20-8,462.98

Finding the Fourth Proportional to 15,177.88, 20,944.20 and 8,462.98

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Solution

The fourth proportional to 15,177.88, 20,944.20 and 8,462.98 is: 11,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.88 : 20,944.20 = 8,462.98 : x
  2. Step 2: Convert to fraction form
    15,177.88/20,944.20 = 8,462.98/x
  3. Step 3: Cross multiply
    15,177.88x = 20,944.20 × 8,462.98
  4. Step 4: Simplify right side
    15,177.88x = 177,250,345.72
  5. Step 5: Solve for x
    x = 177,250,345.72/15,177.88
  6. Step 6: Final answer
    x = 11,678.20

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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.