Home / 7,113.20-10,644.60-6,198.80

Finding the Fourth Proportional to 7,113.20, 10,644.60 and 6,198.80

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Solution

The fourth proportional to 7,113.20, 10,644.60 and 6,198.80 is: 9,276.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.20 : 10,644.60 = 6,198.80 : x
  2. Step 2: Convert to fraction form
    7,113.20/10,644.60 = 6,198.80/x
  3. Step 3: Cross multiply
    7,113.20x = 10,644.60 × 6,198.80
  4. Step 4: Simplify right side
    7,113.20x = 65,983,746.48
  5. Step 5: Solve for x
    x = 65,983,746.48/7,113.20
  6. Step 6: Final answer
    x = 9,276.24

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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.