Home / 13,440.28-20,082.99-10,260.22

Finding the Fourth Proportional to 13,440.28, 20,082.99 and 10,260.22

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Solution

The fourth proportional to 13,440.28, 20,082.99 and 10,260.22 is: 15,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.28 : 20,082.99 = 10,260.22 : x
  2. Step 2: Convert to fraction form
    13,440.28/20,082.99 = 10,260.22/x
  3. Step 3: Cross multiply
    13,440.28x = 20,082.99 × 10,260.22
  4. Step 4: Simplify right side
    13,440.28x = 206,055,895.66
  5. Step 5: Solve for x
    x = 206,055,895.66/13,440.28
  6. Step 6: Final answer
    x = 15,331.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.