Home / 13,445.84-20,168.76-4,211.92

Finding the Fourth Proportional to 13,445.84, 20,168.76 and 4,211.92

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Solution

The fourth proportional to 13,445.84, 20,168.76 and 4,211.92 is: 6,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.84 : 20,168.76 = 4,211.92 : x
  2. Step 2: Convert to fraction form
    13,445.84/20,168.76 = 4,211.92/x
  3. Step 3: Cross multiply
    13,445.84x = 20,168.76 × 4,211.92
  4. Step 4: Simplify right side
    13,445.84x = 84,949,203.62
  5. Step 5: Solve for x
    x = 84,949,203.62/13,445.84
  6. Step 6: Final answer
    x = 6,317.88

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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.