Home / 13,335.05-20,002.56-3,474.30

Finding the Fourth Proportional to 13,335.05, 20,002.56 and 3,474.30

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Solution

The fourth proportional to 13,335.05, 20,002.56 and 3,474.30 is: 5,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.05 : 20,002.56 = 3,474.30 : x
  2. Step 2: Convert to fraction form
    13,335.05/20,002.56 = 3,474.30/x
  3. Step 3: Cross multiply
    13,335.05x = 20,002.56 × 3,474.30
  4. Step 4: Simplify right side
    13,335.05x = 69,494,894.21
  5. Step 5: Solve for x
    x = 69,494,894.21/13,335.05
  6. Step 6: Final answer
    x = 5,211.45

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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.