Home / 7,427.75-10,250.30-4,115.75

Finding the Fourth Proportional to 7,427.75, 10,250.30 and 4,115.75

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Solution

The fourth proportional to 7,427.75, 10,250.30 and 4,115.75 is: 5,679.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.75 : 10,250.30 = 4,115.75 : x
  2. Step 2: Convert to fraction form
    7,427.75/10,250.30 = 4,115.75/x
  3. Step 3: Cross multiply
    7,427.75x = 10,250.30 × 4,115.75
  4. Step 4: Simplify right side
    7,427.75x = 42,187,672.23
  5. Step 5: Solve for x
    x = 42,187,672.23/7,427.75
  6. Step 6: Final answer
    x = 5,679.74

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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.