Home / 7,789.16-11,683.74-6,170.78

Finding the Fourth Proportional to 7,789.16, 11,683.74 and 6,170.78

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Solution

The fourth proportional to 7,789.16, 11,683.74 and 6,170.78 is: 9,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.16 : 11,683.74 = 6,170.78 : x
  2. Step 2: Convert to fraction form
    7,789.16/11,683.74 = 6,170.78/x
  3. Step 3: Cross multiply
    7,789.16x = 11,683.74 × 6,170.78
  4. Step 4: Simplify right side
    7,789.16x = 72,097,740.57
  5. Step 5: Solve for x
    x = 72,097,740.57/7,789.16
  6. Step 6: Final answer
    x = 9,256.17

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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.