Home / 7,990.38-11,011.14-5,748.30

Finding the Fourth Proportional to 7,990.38, 11,011.14 and 5,748.30

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Solution

The fourth proportional to 7,990.38, 11,011.14 and 5,748.30 is: 7,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.38 : 11,011.14 = 5,748.30 : x
  2. Step 2: Convert to fraction form
    7,990.38/11,011.14 = 5,748.30/x
  3. Step 3: Cross multiply
    7,990.38x = 11,011.14 × 5,748.30
  4. Step 4: Simplify right side
    7,990.38x = 63,295,336.06
  5. Step 5: Solve for x
    x = 63,295,336.06/7,990.38
  6. Step 6: Final answer
    x = 7,921.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.