Home / 18,348.32-25,296.58-13,239.54

Finding the Fourth Proportional to 18,348.32, 25,296.58 and 13,239.54

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Solution

The fourth proportional to 18,348.32, 25,296.58 and 13,239.54 is: 18,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.32 : 25,296.58 = 13,239.54 : x
  2. Step 2: Convert to fraction form
    18,348.32/25,296.58 = 13,239.54/x
  3. Step 3: Cross multiply
    18,348.32x = 25,296.58 × 13,239.54
  4. Step 4: Simplify right side
    18,348.32x = 334,915,049.67
  5. Step 5: Solve for x
    x = 334,915,049.67/18,348.32
  6. Step 6: Final answer
    x = 18,253.18

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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.