Home / 6,514.40-9,795.90-5,445.20

Finding the Fourth Proportional to 6,514.40, 9,795.90 and 5,445.20

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Solution

The fourth proportional to 6,514.40, 9,795.90 and 5,445.20 is: 8,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.40 : 9,795.90 = 5,445.20 : x
  2. Step 2: Convert to fraction form
    6,514.40/9,795.90 = 5,445.20/x
  3. Step 3: Cross multiply
    6,514.40x = 9,795.90 × 5,445.20
  4. Step 4: Simplify right side
    6,514.40x = 53,340,634.68
  5. Step 5: Solve for x
    x = 53,340,634.68/6,514.40
  6. Step 6: Final answer
    x = 8,188.11

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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.