Home / 12,498.98-18,748.80-5,475.38

Finding the Fourth Proportional to 12,498.98, 18,748.80 and 5,475.38

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Solution

The fourth proportional to 12,498.98, 18,748.80 and 5,475.38 is: 8,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,498.98 : 18,748.80 = 5,475.38 : x
  2. Step 2: Convert to fraction form
    12,498.98/18,748.80 = 5,475.38/x
  3. Step 3: Cross multiply
    12,498.98x = 18,748.80 × 5,475.38
  4. Step 4: Simplify right side
    12,498.98x = 102,656,710.80
  5. Step 5: Solve for x
    x = 102,656,710.80/12,498.98
  6. Step 6: Final answer
    x = 8,213.21

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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.