Home / 17,638.11-26,449.35-8,270.57

Finding the Fourth Proportional to 17,638.11, 26,449.35 and 8,270.57

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Solution

The fourth proportional to 17,638.11, 26,449.35 and 8,270.57 is: 12,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.11 : 26,449.35 = 8,270.57 : x
  2. Step 2: Convert to fraction form
    17,638.11/26,449.35 = 8,270.57/x
  3. Step 3: Cross multiply
    17,638.11x = 26,449.35 × 8,270.57
  4. Step 4: Simplify right side
    17,638.11x = 218,751,068.38
  5. Step 5: Solve for x
    x = 218,751,068.38/17,638.11
  6. Step 6: Final answer
    x = 12,402.18

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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.