Home / 10,179.26-15,246.33-7,821.92

Finding the Fourth Proportional to 10,179.26, 15,246.33 and 7,821.92

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Solution

The fourth proportional to 10,179.26, 15,246.33 and 7,821.92 is: 11,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.26 : 15,246.33 = 7,821.92 : x
  2. Step 2: Convert to fraction form
    10,179.26/15,246.33 = 7,821.92/x
  3. Step 3: Cross multiply
    10,179.26x = 15,246.33 × 7,821.92
  4. Step 4: Simplify right side
    10,179.26x = 119,255,497.32
  5. Step 5: Solve for x
    x = 119,255,497.32/10,179.26
  6. Step 6: Final answer
    x = 11,715.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.