Home / 13,082.89-18,052.86-7,418.29

Finding the Fourth Proportional to 13,082.89, 18,052.86 and 7,418.29

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Solution

The fourth proportional to 13,082.89, 18,052.86 and 7,418.29 is: 10,236.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.89 : 18,052.86 = 7,418.29 : x
  2. Step 2: Convert to fraction form
    13,082.89/18,052.86 = 7,418.29/x
  3. Step 3: Cross multiply
    13,082.89x = 18,052.86 × 7,418.29
  4. Step 4: Simplify right side
    13,082.89x = 133,921,350.81
  5. Step 5: Solve for x
    x = 133,921,350.81/13,082.89
  6. Step 6: Final answer
    x = 10,236.37

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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.