Home / 13,281.92-18,329.10-7,976.82

Finding the Fourth Proportional to 13,281.92, 18,329.10 and 7,976.82

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Solution

The fourth proportional to 13,281.92, 18,329.10 and 7,976.82 is: 11,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.92 : 18,329.10 = 7,976.82 : x
  2. Step 2: Convert to fraction form
    13,281.92/18,329.10 = 7,976.82/x
  3. Step 3: Cross multiply
    13,281.92x = 18,329.10 × 7,976.82
  4. Step 4: Simplify right side
    13,281.92x = 146,207,891.58
  5. Step 5: Solve for x
    x = 146,207,891.58/13,281.92
  6. Step 6: Final answer
    x = 11,008.04

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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.