Home / 12,218.04-18,319.77-8,748

Finding the Fourth Proportional to 12,218.04, 18,319.77 and 8,748

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Solution

The fourth proportional to 12,218.04, 18,319.77 and 8,748 is: 13,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.04 : 18,319.77 = 8,748 : x
  2. Step 2: Convert to fraction form
    12,218.04/18,319.77 = 8,748/x
  3. Step 3: Cross multiply
    12,218.04x = 18,319.77 × 8,748
  4. Step 4: Simplify right side
    12,218.04x = 160,261,347.96
  5. Step 5: Solve for x
    x = 160,261,347.96/12,218.04
  6. Step 6: Final answer
    x = 13,116.78

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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.