Home / 8,480.24-12,719.72-4,317.64

Finding the Fourth Proportional to 8,480.24, 12,719.72 and 4,317.64

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Solution

The fourth proportional to 8,480.24, 12,719.72 and 4,317.64 is: 6,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.24 : 12,719.72 = 4,317.64 : x
  2. Step 2: Convert to fraction form
    8,480.24/12,719.72 = 4,317.64/x
  3. Step 3: Cross multiply
    8,480.24x = 12,719.72 × 4,317.64
  4. Step 4: Simplify right side
    8,480.24x = 54,919,171.86
  5. Step 5: Solve for x
    x = 54,919,171.86/8,480.24
  6. Step 6: Final answer
    x = 6,476.13

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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.