Home / 10,120.14-13,967.49-6,143.90

Finding the Fourth Proportional to 10,120.14, 13,967.49 and 6,143.90

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Solution

The fourth proportional to 10,120.14, 13,967.49 and 6,143.90 is: 8,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.14 : 13,967.49 = 6,143.90 : x
  2. Step 2: Convert to fraction form
    10,120.14/13,967.49 = 6,143.90/x
  3. Step 3: Cross multiply
    10,120.14x = 13,967.49 × 6,143.90
  4. Step 4: Simplify right side
    10,120.14x = 85,814,859.02
  5. Step 5: Solve for x
    x = 85,814,859.02/10,120.14
  6. Step 6: Final answer
    x = 8,479.61

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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.