Home / 7,513.40-11,270.10-3,618.20

Finding the Fourth Proportional to 7,513.40, 11,270.10 and 3,618.20

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Solution

The fourth proportional to 7,513.40, 11,270.10 and 3,618.20 is: 5,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,513.40 : 11,270.10 = 3,618.20 : x
  2. Step 2: Convert to fraction form
    7,513.40/11,270.10 = 3,618.20/x
  3. Step 3: Cross multiply
    7,513.40x = 11,270.10 × 3,618.20
  4. Step 4: Simplify right side
    7,513.40x = 40,777,475.82
  5. Step 5: Solve for x
    x = 40,777,475.82/7,513.40
  6. Step 6: Final answer
    x = 5,427.30

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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.