Home / 8,820.32-12,171.22-5,234.65

Finding the Fourth Proportional to 8,820.32, 12,171.22 and 5,234.65

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Solution

The fourth proportional to 8,820.32, 12,171.22 and 5,234.65 is: 7,223.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.32 : 12,171.22 = 5,234.65 : x
  2. Step 2: Convert to fraction form
    8,820.32/12,171.22 = 5,234.65/x
  3. Step 3: Cross multiply
    8,820.32x = 12,171.22 × 5,234.65
  4. Step 4: Simplify right side
    8,820.32x = 63,712,033.26
  5. Step 5: Solve for x
    x = 63,712,033.26/8,820.32
  6. Step 6: Final answer
    x = 7,223.33

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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.