Home / 15,398.40-23,057.28-11,938.56

Finding the Fourth Proportional to 15,398.40, 23,057.28 and 11,938.56

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Solution

The fourth proportional to 15,398.40, 23,057.28 and 11,938.56 is: 17,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,398.40 : 23,057.28 = 11,938.56 : x
  2. Step 2: Convert to fraction form
    15,398.40/23,057.28 = 11,938.56/x
  3. Step 3: Cross multiply
    15,398.40x = 23,057.28 × 11,938.56
  4. Step 4: Simplify right side
    15,398.40x = 275,270,720.72
  5. Step 5: Solve for x
    x = 275,270,720.72/15,398.40
  6. Step 6: Final answer
    x = 17,876.58

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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.