Home / 13,335.75-20,001.78-3,474.23

Finding the Fourth Proportional to 13,335.75, 20,001.78 and 3,474.23

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Solution

The fourth proportional to 13,335.75, 20,001.78 and 3,474.23 is: 5,210.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.75 : 20,001.78 = 3,474.23 : x
  2. Step 2: Convert to fraction form
    13,335.75/20,001.78 = 3,474.23/x
  3. Step 3: Cross multiply
    13,335.75x = 20,001.78 × 3,474.23
  4. Step 4: Simplify right side
    13,335.75x = 69,490,684.12
  5. Step 5: Solve for x
    x = 69,490,684.12/13,335.75
  6. Step 6: Final answer
    x = 5,210.86

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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.