Home / 13,474.32-20,211.48-5,156.89

Finding the Fourth Proportional to 13,474.32, 20,211.48 and 5,156.89

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Solution

The fourth proportional to 13,474.32, 20,211.48 and 5,156.89 is: 7,735.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.32 : 20,211.48 = 5,156.89 : x
  2. Step 2: Convert to fraction form
    13,474.32/20,211.48 = 5,156.89/x
  3. Step 3: Cross multiply
    13,474.32x = 20,211.48 × 5,156.89
  4. Step 4: Simplify right side
    13,474.32x = 104,228,278.04
  5. Step 5: Solve for x
    x = 104,228,278.04/13,474.32
  6. Step 6: Final answer
    x = 7,735.33

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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.