Home / 15,690.47-23,514.92-7,355.57

Finding the Fourth Proportional to 15,690.47, 23,514.92 and 7,355.57

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Solution

The fourth proportional to 15,690.47, 23,514.92 and 7,355.57 is: 11,023.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.47 : 23,514.92 = 7,355.57 : x
  2. Step 2: Convert to fraction form
    15,690.47/23,514.92 = 7,355.57/x
  3. Step 3: Cross multiply
    15,690.47x = 23,514.92 × 7,355.57
  4. Step 4: Simplify right side
    15,690.47x = 172,965,640.10
  5. Step 5: Solve for x
    x = 172,965,640.10/15,690.47
  6. Step 6: Final answer
    x = 11,023.61

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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.