Home / 17,749.68-26,640.92-8,990.74

Finding the Fourth Proportional to 17,749.68, 26,640.92 and 8,990.74

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Solution

The fourth proportional to 17,749.68, 26,640.92 and 8,990.74 is: 13,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,749.68 : 26,640.92 = 8,990.74 : x
  2. Step 2: Convert to fraction form
    17,749.68/26,640.92 = 8,990.74/x
  3. Step 3: Cross multiply
    17,749.68x = 26,640.92 × 8,990.74
  4. Step 4: Simplify right side
    17,749.68x = 239,521,585.08
  5. Step 5: Solve for x
    x = 239,521,585.08/17,749.68
  6. Step 6: Final answer
    x = 13,494.42

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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.