Home / 6,480.05-9,720.11-3,556.76

Finding the Fourth Proportional to 6,480.05, 9,720.11 and 3,556.76

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Solution

The fourth proportional to 6,480.05, 9,720.11 and 3,556.76 is: 5,335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.05 : 9,720.11 = 3,556.76 : x
  2. Step 2: Convert to fraction form
    6,480.05/9,720.11 = 3,556.76/x
  3. Step 3: Cross multiply
    6,480.05x = 9,720.11 × 3,556.76
  4. Step 4: Simplify right side
    6,480.05x = 34,572,080.66
  5. Step 5: Solve for x
    x = 34,572,080.66/6,480.05
  6. Step 6: Final answer
    x = 5,335.16

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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.