Home / 6,621.46-9,138.11-4,104.07

Finding the Fourth Proportional to 6,621.46, 9,138.11 and 4,104.07

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Solution

The fourth proportional to 6,621.46, 9,138.11 and 4,104.07 is: 5,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.46 : 9,138.11 = 4,104.07 : x
  2. Step 2: Convert to fraction form
    6,621.46/9,138.11 = 4,104.07/x
  3. Step 3: Cross multiply
    6,621.46x = 9,138.11 × 4,104.07
  4. Step 4: Simplify right side
    6,621.46x = 37,503,376.90
  5. Step 5: Solve for x
    x = 37,503,376.90/6,621.46
  6. Step 6: Final answer
    x = 5,663.91

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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.