Home / 18,412.25-25,409.18-10,028.75

Finding the Fourth Proportional to 18,412.25, 25,409.18 and 10,028.75

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Solution

The fourth proportional to 18,412.25, 25,409.18 and 10,028.75 is: 13,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.25 : 25,409.18 = 10,028.75 : x
  2. Step 2: Convert to fraction form
    18,412.25/25,409.18 = 10,028.75/x
  3. Step 3: Cross multiply
    18,412.25x = 25,409.18 × 10,028.75
  4. Step 4: Simplify right side
    18,412.25x = 254,822,211.95
  5. Step 5: Solve for x
    x = 254,822,211.95/18,412.25
  6. Step 6: Final answer
    x = 13,839.82

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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.