Home / 9,899.89-14,849.83-3,976.78

Finding the Fourth Proportional to 9,899.89, 14,849.83 and 3,976.78

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Solution

The fourth proportional to 9,899.89, 14,849.83 and 3,976.78 is: 5,965.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.89 : 14,849.83 = 3,976.78 : x
  2. Step 2: Convert to fraction form
    9,899.89/14,849.83 = 3,976.78/x
  3. Step 3: Cross multiply
    9,899.89x = 14,849.83 × 3,976.78
  4. Step 4: Simplify right side
    9,899.89x = 59,054,432.70
  5. Step 5: Solve for x
    x = 59,054,432.70/9,899.89
  6. Step 6: Final answer
    x = 5,965.16

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Similar ratio
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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.