Home / 8,486.02-12,716.03-4,319.78

Finding the Fourth Proportional to 8,486.02, 12,716.03 and 4,319.78

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Solution

The fourth proportional to 8,486.02, 12,716.03 and 4,319.78 is: 6,473.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.02 : 12,716.03 = 4,319.78 : x
  2. Step 2: Convert to fraction form
    8,486.02/12,716.03 = 4,319.78/x
  3. Step 3: Cross multiply
    8,486.02x = 12,716.03 × 4,319.78
  4. Step 4: Simplify right side
    8,486.02x = 54,930,494.66
  5. Step 5: Solve for x
    x = 54,930,494.66/8,486.02
  6. Step 6: Final answer
    x = 6,473.06

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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.