Home / 10,145.22-15,177.21-8,773.38

Finding the Fourth Proportional to 10,145.22, 15,177.21 and 8,773.38

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Solution

The fourth proportional to 10,145.22, 15,177.21 and 8,773.38 is: 13,124.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.22 : 15,177.21 = 8,773.38 : x
  2. Step 2: Convert to fraction form
    10,145.22/15,177.21 = 8,773.38/x
  3. Step 3: Cross multiply
    10,145.22x = 15,177.21 × 8,773.38
  4. Step 4: Simplify right side
    10,145.22x = 133,155,430.67
  5. Step 5: Solve for x
    x = 133,155,430.67/10,145.22
  6. Step 6: Final answer
    x = 13,124.94

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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.