Home / 15,279.43-22,919.16-4,186.21

Finding the Fourth Proportional to 15,279.43, 22,919.16 and 4,186.21

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Solution

The fourth proportional to 15,279.43, 22,919.16 and 4,186.21 is: 6,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279.43 : 22,919.16 = 4,186.21 : x
  2. Step 2: Convert to fraction form
    15,279.43/22,919.16 = 4,186.21/x
  3. Step 3: Cross multiply
    15,279.43x = 22,919.16 × 4,186.21
  4. Step 4: Simplify right side
    15,279.43x = 95,944,395.85
  5. Step 5: Solve for x
    x = 95,944,395.85/15,279.43
  6. Step 6: Final answer
    x = 6,279.32

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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.