Home / 9,939.45-14,909.07-2,543.85

Finding the Fourth Proportional to 9,939.45, 14,909.07 and 2,543.85

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Solution

The fourth proportional to 9,939.45, 14,909.07 and 2,543.85 is: 3,815.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.45 : 14,909.07 = 2,543.85 : x
  2. Step 2: Convert to fraction form
    9,939.45/14,909.07 = 2,543.85/x
  3. Step 3: Cross multiply
    9,939.45x = 14,909.07 × 2,543.85
  4. Step 4: Simplify right side
    9,939.45x = 37,926,437.72
  5. Step 5: Solve for x
    x = 37,926,437.72/9,939.45
  6. Step 6: Final answer
    x = 3,815.75

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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.