Home / 10,126.28-15,189.36-3,459.56

Finding the Fourth Proportional to 10,126.28, 15,189.36 and 3,459.56

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Solution

The fourth proportional to 10,126.28, 15,189.36 and 3,459.56 is: 5,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.28 : 15,189.36 = 3,459.56 : x
  2. Step 2: Convert to fraction form
    10,126.28/15,189.36 = 3,459.56/x
  3. Step 3: Cross multiply
    10,126.28x = 15,189.36 × 3,459.56
  4. Step 4: Simplify right side
    10,126.28x = 52,548,502.28
  5. Step 5: Solve for x
    x = 52,548,502.28/10,126.28
  6. Step 6: Final answer
    x = 5,189.32

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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.