Home / 13,539.53-20,312.92-4,179.17

Finding the Fourth Proportional to 13,539.53, 20,312.92 and 4,179.17

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Solution

The fourth proportional to 13,539.53, 20,312.92 and 4,179.17 is: 6,269.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.53 : 20,312.92 = 4,179.17 : x
  2. Step 2: Convert to fraction form
    13,539.53/20,312.92 = 4,179.17/x
  3. Step 3: Cross multiply
    13,539.53x = 20,312.92 × 4,179.17
  4. Step 4: Simplify right side
    13,539.53x = 84,891,145.88
  5. Step 5: Solve for x
    x = 84,891,145.88/13,539.53
  6. Step 6: Final answer
    x = 6,269.87

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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.