Home / 13,520.04-20,275.74-6,949.80

Finding the Fourth Proportional to 13,520.04, 20,275.74 and 6,949.80

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Solution

The fourth proportional to 13,520.04, 20,275.74 and 6,949.80 is: 10,422.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.04 : 20,275.74 = 6,949.80 : x
  2. Step 2: Convert to fraction form
    13,520.04/20,275.74 = 6,949.80/x
  3. Step 3: Cross multiply
    13,520.04x = 20,275.74 × 6,949.80
  4. Step 4: Simplify right side
    13,520.04x = 140,912,337.85
  5. Step 5: Solve for x
    x = 140,912,337.85/13,520.04
  6. Step 6: Final answer
    x = 10,422.48

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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.