Home / 12,559.40-18,841.28-5,167.88

Finding the Fourth Proportional to 12,559.40, 18,841.28 and 5,167.88

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Solution

The fourth proportional to 12,559.40, 18,841.28 and 5,167.88 is: 7,752.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.40 : 18,841.28 = 5,167.88 : x
  2. Step 2: Convert to fraction form
    12,559.40/18,841.28 = 5,167.88/x
  3. Step 3: Cross multiply
    12,559.40x = 18,841.28 × 5,167.88
  4. Step 4: Simplify right side
    12,559.40x = 97,369,474.09
  5. Step 5: Solve for x
    x = 97,369,474.09/12,559.40
  6. Step 6: Final answer
    x = 7,752.72

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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.