Home / 9,780.06-14,670.09-2,759.79

Finding the Fourth Proportional to 9,780.06, 14,670.09 and 2,759.79

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Solution

The fourth proportional to 9,780.06, 14,670.09 and 2,759.79 is: 4,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.06 : 14,670.09 = 2,759.79 : x
  2. Step 2: Convert to fraction form
    9,780.06/14,670.09 = 2,759.79/x
  3. Step 3: Cross multiply
    9,780.06x = 14,670.09 × 2,759.79
  4. Step 4: Simplify right side
    9,780.06x = 40,486,367.68
  5. Step 5: Solve for x
    x = 40,486,367.68/9,780.06
  6. Step 6: Final answer
    x = 4,139.69

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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.