Home / 15,926.87-21,977.17-8,755.60

Finding the Fourth Proportional to 15,926.87, 21,977.17 and 8,755.60

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Solution

The fourth proportional to 15,926.87, 21,977.17 and 8,755.60 is: 12,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,926.87 : 21,977.17 = 8,755.60 : x
  2. Step 2: Convert to fraction form
    15,926.87/21,977.17 = 8,755.60/x
  3. Step 3: Cross multiply
    15,926.87x = 21,977.17 × 8,755.60
  4. Step 4: Simplify right side
    15,926.87x = 192,423,265.87
  5. Step 5: Solve for x
    x = 192,423,265.87/15,926.87
  6. Step 6: Final answer
    x = 12,081.68

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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.