Home / 13,572.08-20,361.30-4,211.62

Finding the Fourth Proportional to 13,572.08, 20,361.30 and 4,211.62

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Solution

The fourth proportional to 13,572.08, 20,361.30 and 4,211.62 is: 6,318.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.08 : 20,361.30 = 4,211.62 : x
  2. Step 2: Convert to fraction form
    13,572.08/20,361.30 = 4,211.62/x
  3. Step 3: Cross multiply
    13,572.08x = 20,361.30 × 4,211.62
  4. Step 4: Simplify right side
    13,572.08x = 85,754,058.31
  5. Step 5: Solve for x
    x = 85,754,058.31/13,572.08
  6. Step 6: Final answer
    x = 6,318.42

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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.