Home / 13,324.28-18,387.40-7,356.20

Finding the Fourth Proportional to 13,324.28, 18,387.40 and 7,356.20

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Solution

The fourth proportional to 13,324.28, 18,387.40 and 7,356.20 is: 10,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.28 : 18,387.40 = 7,356.20 : x
  2. Step 2: Convert to fraction form
    13,324.28/18,387.40 = 7,356.20/x
  3. Step 3: Cross multiply
    13,324.28x = 18,387.40 × 7,356.20
  4. Step 4: Simplify right side
    13,324.28x = 135,261,391.88
  5. Step 5: Solve for x
    x = 135,261,391.88/13,324.28
  6. Step 6: Final answer
    x = 10,151.50

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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.