Home / 18,310.90-25,269.20-10,755.72

Finding the Fourth Proportional to 18,310.90, 25,269.20 and 10,755.72

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Solution

The fourth proportional to 18,310.90, 25,269.20 and 10,755.72 is: 14,842.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.90 : 25,269.20 = 10,755.72 : x
  2. Step 2: Convert to fraction form
    18,310.90/25,269.20 = 10,755.72/x
  3. Step 3: Cross multiply
    18,310.90x = 25,269.20 × 10,755.72
  4. Step 4: Simplify right side
    18,310.90x = 271,788,439.82
  5. Step 5: Solve for x
    x = 271,788,439.82/18,310.90
  6. Step 6: Final answer
    x = 14,842.99

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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.