Home / 7,431.68-11,143.57-2,499.72

Finding the Fourth Proportional to 7,431.68, 11,143.57 and 2,499.72

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Solution

The fourth proportional to 7,431.68, 11,143.57 and 2,499.72 is: 3,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.68 : 11,143.57 = 2,499.72 : x
  2. Step 2: Convert to fraction form
    7,431.68/11,143.57 = 2,499.72/x
  3. Step 3: Cross multiply
    7,431.68x = 11,143.57 × 2,499.72
  4. Step 4: Simplify right side
    7,431.68x = 27,855,804.80
  5. Step 5: Solve for x
    x = 27,855,804.80/7,431.68
  6. Step 6: Final answer
    x = 3,748.25

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.