Home / 15,180.09-20,948.42-8,465.79

Finding the Fourth Proportional to 15,180.09, 20,948.42 and 8,465.79

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Solution

The fourth proportional to 15,180.09, 20,948.42 and 8,465.79 is: 11,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.09 : 20,948.42 = 8,465.79 : x
  2. Step 2: Convert to fraction form
    15,180.09/20,948.42 = 8,465.79/x
  3. Step 3: Cross multiply
    15,180.09x = 20,948.42 × 8,465.79
  4. Step 4: Simplify right side
    15,180.09x = 177,344,882.22
  5. Step 5: Solve for x
    x = 177,344,882.22/15,180.09
  6. Step 6: Final answer
    x = 11,682.73

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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.