Home / 15,243.18-21,034.56-8,527.65

Finding the Fourth Proportional to 15,243.18, 21,034.56 and 8,527.65

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Solution

The fourth proportional to 15,243.18, 21,034.56 and 8,527.65 is: 11,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.18 : 21,034.56 = 8,527.65 : x
  2. Step 2: Convert to fraction form
    15,243.18/21,034.56 = 8,527.65/x
  3. Step 3: Cross multiply
    15,243.18x = 21,034.56 × 8,527.65
  4. Step 4: Simplify right side
    15,243.18x = 179,375,365.58
  5. Step 5: Solve for x
    x = 179,375,365.58/15,243.18
  6. Step 6: Final answer
    x = 11,767.58

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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.