Home / 15,379.76-21,224.07-8,306.18

Finding the Fourth Proportional to 15,379.76, 21,224.07 and 8,306.18

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Solution

The fourth proportional to 15,379.76, 21,224.07 and 8,306.18 is: 11,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.76 : 21,224.07 = 8,306.18 : x
  2. Step 2: Convert to fraction form
    15,379.76/21,224.07 = 8,306.18/x
  3. Step 3: Cross multiply
    15,379.76x = 21,224.07 × 8,306.18
  4. Step 4: Simplify right side
    15,379.76x = 176,290,945.75
  5. Step 5: Solve for x
    x = 176,290,945.75/15,379.76
  6. Step 6: Final answer
    x = 11,462.53

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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.