Home / 6,643.10-9,172.59-4,408.11

Finding the Fourth Proportional to 6,643.10, 9,172.59 and 4,408.11

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Solution

The fourth proportional to 6,643.10, 9,172.59 and 4,408.11 is: 6,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.10 : 9,172.59 = 4,408.11 : x
  2. Step 2: Convert to fraction form
    6,643.10/9,172.59 = 4,408.11/x
  3. Step 3: Cross multiply
    6,643.10x = 9,172.59 × 4,408.11
  4. Step 4: Simplify right side
    6,643.10x = 40,433,785.70
  5. Step 5: Solve for x
    x = 40,433,785.70/6,643.10
  6. Step 6: Final answer
    x = 6,086.59

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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.