Home / 7,874.21-10,865.28-4,517.17

Finding the Fourth Proportional to 7,874.21, 10,865.28 and 4,517.17

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Solution

The fourth proportional to 7,874.21, 10,865.28 and 4,517.17 is: 6,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.21 : 10,865.28 = 4,517.17 : x
  2. Step 2: Convert to fraction form
    7,874.21/10,865.28 = 4,517.17/x
  3. Step 3: Cross multiply
    7,874.21x = 10,865.28 × 4,517.17
  4. Step 4: Simplify right side
    7,874.21x = 49,080,316.86
  5. Step 5: Solve for x
    x = 49,080,316.86/7,874.21
  6. Step 6: Final answer
    x = 6,233.05

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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.