Home / 10,379.76-14,321.60-5,902.56

Finding the Fourth Proportional to 10,379.76, 14,321.60 and 5,902.56

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Solution

The fourth proportional to 10,379.76, 14,321.60 and 5,902.56 is: 8,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.76 : 14,321.60 = 5,902.56 : x
  2. Step 2: Convert to fraction form
    10,379.76/14,321.60 = 5,902.56/x
  3. Step 3: Cross multiply
    10,379.76x = 14,321.60 × 5,902.56
  4. Step 4: Simplify right side
    10,379.76x = 84,534,103.30
  5. Step 5: Solve for x
    x = 84,534,103.30/10,379.76
  6. Step 6: Final answer
    x = 8,144.13

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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.