Home / 6,635.45-9,153.11-4,147.13

Finding the Fourth Proportional to 6,635.45, 9,153.11 and 4,147.13

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Solution

The fourth proportional to 6,635.45, 9,153.11 and 4,147.13 is: 5,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,635.45 : 9,153.11 = 4,147.13 : x
  2. Step 2: Convert to fraction form
    6,635.45/9,153.11 = 4,147.13/x
  3. Step 3: Cross multiply
    6,635.45x = 9,153.11 × 4,147.13
  4. Step 4: Simplify right side
    6,635.45x = 37,959,070.57
  5. Step 5: Solve for x
    x = 37,959,070.57/6,635.45
  6. Step 6: Final answer
    x = 5,720.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.