Home / 13,374.47-18,456.48-7,324.72

Finding the Fourth Proportional to 13,374.47, 18,456.48 and 7,324.72

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Solution

The fourth proportional to 13,374.47, 18,456.48 and 7,324.72 is: 10,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.47 : 18,456.48 = 7,324.72 : x
  2. Step 2: Convert to fraction form
    13,374.47/18,456.48 = 7,324.72/x
  3. Step 3: Cross multiply
    13,374.47x = 18,456.48 × 7,324.72
  4. Step 4: Simplify right side
    13,374.47x = 135,188,502.04
  5. Step 5: Solve for x
    x = 135,188,502.04/13,374.47
  6. Step 6: Final answer
    x = 10,107.95

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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.