Home / 7,427.28-10,249.76-4,070.16

Finding the Fourth Proportional to 7,427.28, 10,249.76 and 4,070.16

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Solution

The fourth proportional to 7,427.28, 10,249.76 and 4,070.16 is: 5,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.28 : 10,249.76 = 4,070.16 : x
  2. Step 2: Convert to fraction form
    7,427.28/10,249.76 = 4,070.16/x
  3. Step 3: Cross multiply
    7,427.28x = 10,249.76 × 4,070.16
  4. Step 4: Simplify right side
    7,427.28x = 41,718,163.16
  5. Step 5: Solve for x
    x = 41,718,163.16/7,427.28
  6. Step 6: Final answer
    x = 5,616.88

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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.