Home / 15,081.92-22,639.43-11,981.85

Finding the Fourth Proportional to 15,081.92, 22,639.43 and 11,981.85

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Solution

The fourth proportional to 15,081.92, 22,639.43 and 11,981.85 is: 17,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.92 : 22,639.43 = 11,981.85 : x
  2. Step 2: Convert to fraction form
    15,081.92/22,639.43 = 11,981.85/x
  3. Step 3: Cross multiply
    15,081.92x = 22,639.43 × 11,981.85
  4. Step 4: Simplify right side
    15,081.92x = 271,262,284.30
  5. Step 5: Solve for x
    x = 271,262,284.30/15,081.92
  6. Step 6: Final answer
    x = 17,985.92

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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.