Home / 7,431.56-10,255.08-4,073.78

Finding the Fourth Proportional to 7,431.56, 10,255.08 and 4,073.78

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Solution

The fourth proportional to 7,431.56, 10,255.08 and 4,073.78 is: 5,621.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.56 : 10,255.08 = 4,073.78 : x
  2. Step 2: Convert to fraction form
    7,431.56/10,255.08 = 4,073.78/x
  3. Step 3: Cross multiply
    7,431.56x = 10,255.08 × 4,073.78
  4. Step 4: Simplify right side
    7,431.56x = 41,776,939.80
  5. Step 5: Solve for x
    x = 41,776,939.80/7,431.56
  6. Step 6: Final answer
    x = 5,621.56

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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.