Home / 12,379.80-18,575.16-4,998.66

Finding the Fourth Proportional to 12,379.80, 18,575.16 and 4,998.66

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Solution

The fourth proportional to 12,379.80, 18,575.16 and 4,998.66 is: 7,500.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.80 : 18,575.16 = 4,998.66 : x
  2. Step 2: Convert to fraction form
    12,379.80/18,575.16 = 4,998.66/x
  3. Step 3: Cross multiply
    12,379.80x = 18,575.16 × 4,998.66
  4. Step 4: Simplify right side
    12,379.80x = 92,850,909.29
  5. Step 5: Solve for x
    x = 92,850,909.29/12,379.80
  6. Step 6: Final answer
    x = 7,500.19

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1.5x scale

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.