Home / 8,082.56-11,154.39-5,389.13

Finding the Fourth Proportional to 8,082.56, 11,154.39 and 5,389.13

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Solution

The fourth proportional to 8,082.56, 11,154.39 and 5,389.13 is: 7,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.56 : 11,154.39 = 5,389.13 : x
  2. Step 2: Convert to fraction form
    8,082.56/11,154.39 = 5,389.13/x
  3. Step 3: Cross multiply
    8,082.56x = 11,154.39 × 5,389.13
  4. Step 4: Simplify right side
    8,082.56x = 60,112,457.78
  5. Step 5: Solve for x
    x = 60,112,457.78/8,082.56
  6. Step 6: Final answer
    x = 7,437.30

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Half scale
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Double scale
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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.