Home / 13,608.32-20,418.75-6,215.04

Finding the Fourth Proportional to 13,608.32, 20,418.75 and 6,215.04

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Solution

The fourth proportional to 13,608.32, 20,418.75 and 6,215.04 is: 9,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.32 : 20,418.75 = 6,215.04 : x
  2. Step 2: Convert to fraction form
    13,608.32/20,418.75 = 6,215.04/x
  3. Step 3: Cross multiply
    13,608.32x = 20,418.75 × 6,215.04
  4. Step 4: Simplify right side
    13,608.32x = 126,903,348
  5. Step 5: Solve for x
    x = 126,903,348/13,608.32
  6. Step 6: Final answer
    x = 9,325.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.