Home / 13,371.31-18,452.16-7,402.84

Finding the Fourth Proportional to 13,371.31, 18,452.16 and 7,402.84

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Solution

The fourth proportional to 13,371.31, 18,452.16 and 7,402.84 is: 10,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.31 : 18,452.16 = 7,402.84 : x
  2. Step 2: Convert to fraction form
    13,371.31/18,452.16 = 7,402.84/x
  3. Step 3: Cross multiply
    13,371.31x = 18,452.16 × 7,402.84
  4. Step 4: Simplify right side
    13,371.31x = 136,598,388.13
  5. Step 5: Solve for x
    x = 136,598,388.13/13,371.31
  6. Step 6: Final answer
    x = 10,215.78

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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.