Home / 6,816.40-10,234.20-5,357.20

Finding the Fourth Proportional to 6,816.40, 10,234.20 and 5,357.20

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Solution

The fourth proportional to 6,816.40, 10,234.20 and 5,357.20 is: 8,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816.40 : 10,234.20 = 5,357.20 : x
  2. Step 2: Convert to fraction form
    6,816.40/10,234.20 = 5,357.20/x
  3. Step 3: Cross multiply
    6,816.40x = 10,234.20 × 5,357.20
  4. Step 4: Simplify right side
    6,816.40x = 54,826,656.24
  5. Step 5: Solve for x
    x = 54,826,656.24/6,816.40
  6. Step 6: Final answer
    x = 8,043.34

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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.