Home / 13,229.68-18,253.92-7,925.44

Finding the Fourth Proportional to 13,229.68, 18,253.92 and 7,925.44

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Solution

The fourth proportional to 13,229.68, 18,253.92 and 7,925.44 is: 10,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.68 : 18,253.92 = 7,925.44 : x
  2. Step 2: Convert to fraction form
    13,229.68/18,253.92 = 7,925.44/x
  3. Step 3: Cross multiply
    13,229.68x = 18,253.92 × 7,925.44
  4. Step 4: Simplify right side
    13,229.68x = 144,670,347.72
  5. Step 5: Solve for x
    x = 144,670,347.72/13,229.68
  6. Step 6: Final answer
    x = 10,935.29

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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.