Home / 18,665.33-25,722.71-13,350.92

Finding the Fourth Proportional to 18,665.33, 25,722.71 and 13,350.92

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Solution

The fourth proportional to 18,665.33, 25,722.71 and 13,350.92 is: 18,398.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.33 : 25,722.71 = 13,350.92 : x
  2. Step 2: Convert to fraction form
    18,665.33/25,722.71 = 13,350.92/x
  3. Step 3: Cross multiply
    18,665.33x = 25,722.71 × 13,350.92
  4. Step 4: Simplify right side
    18,665.33x = 343,421,648.03
  5. Step 5: Solve for x
    x = 343,421,648.03/18,665.33
  6. Step 6: Final answer
    x = 18,398.91

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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.