Home / 15,441.46-21,309.15-8,367.91

Finding the Fourth Proportional to 15,441.46, 21,309.15 and 8,367.91

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Solution

The fourth proportional to 15,441.46, 21,309.15 and 8,367.91 is: 11,547.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.46 : 21,309.15 = 8,367.91 : x
  2. Step 2: Convert to fraction form
    15,441.46/21,309.15 = 8,367.91/x
  3. Step 3: Cross multiply
    15,441.46x = 21,309.15 × 8,367.91
  4. Step 4: Simplify right side
    15,441.46x = 178,313,049.38
  5. Step 5: Solve for x
    x = 178,313,049.38/15,441.46
  6. Step 6: Final answer
    x = 11,547.68

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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.