Home / 15,981.78-23,951.83-8,577.57

Finding the Fourth Proportional to 15,981.78, 23,951.83 and 8,577.57

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Solution

The fourth proportional to 15,981.78, 23,951.83 and 8,577.57 is: 12,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.78 : 23,951.83 = 8,577.57 : x
  2. Step 2: Convert to fraction form
    15,981.78/23,951.83 = 8,577.57/x
  3. Step 3: Cross multiply
    15,981.78x = 23,951.83 × 8,577.57
  4. Step 4: Simplify right side
    15,981.78x = 205,448,498.45
  5. Step 5: Solve for x
    x = 205,448,498.45/15,981.78
  6. Step 6: Final answer
    x = 12,855.17

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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.