Home / 7,217.84-9,961.11-4,074.23

Finding the Fourth Proportional to 7,217.84, 9,961.11 and 4,074.23

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Solution

The fourth proportional to 7,217.84, 9,961.11 and 4,074.23 is: 5,622.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.84 : 9,961.11 = 4,074.23 : x
  2. Step 2: Convert to fraction form
    7,217.84/9,961.11 = 4,074.23/x
  3. Step 3: Cross multiply
    7,217.84x = 9,961.11 × 4,074.23
  4. Step 4: Simplify right side
    7,217.84x = 40,583,878.10
  5. Step 5: Solve for x
    x = 40,583,878.10/7,217.84
  6. Step 6: Final answer
    x = 5,622.72

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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.