Home / 10,087.28-15,126.26-5,581.30

Finding the Fourth Proportional to 10,087.28, 15,126.26 and 5,581.30

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Solution

The fourth proportional to 10,087.28, 15,126.26 and 5,581.30 is: 8,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.28 : 15,126.26 = 5,581.30 : x
  2. Step 2: Convert to fraction form
    10,087.28/15,126.26 = 5,581.30/x
  3. Step 3: Cross multiply
    10,087.28x = 15,126.26 × 5,581.30
  4. Step 4: Simplify right side
    10,087.28x = 84,424,129.22
  5. Step 5: Solve for x
    x = 84,424,129.22/10,087.28
  6. Step 6: Final answer
    x = 8,369.37

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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.