Home / 8,924.57-12,315.69-5,147.73

Finding the Fourth Proportional to 8,924.57, 12,315.69 and 5,147.73

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Solution

The fourth proportional to 8,924.57, 12,315.69 and 5,147.73 is: 7,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,924.57 : 12,315.69 = 5,147.73 : x
  2. Step 2: Convert to fraction form
    8,924.57/12,315.69 = 5,147.73/x
  3. Step 3: Cross multiply
    8,924.57x = 12,315.69 × 5,147.73
  4. Step 4: Simplify right side
    8,924.57x = 63,397,846.88
  5. Step 5: Solve for x
    x = 63,397,846.88/8,924.57
  6. Step 6: Final answer
    x = 7,103.75

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Double scale
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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.