Home / 8,117.12-11,200.20-4,974.32

Finding the Fourth Proportional to 8,117.12, 11,200.20 and 4,974.32

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Solution

The fourth proportional to 8,117.12, 11,200.20 and 4,974.32 is: 6,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.12 : 11,200.20 = 4,974.32 : x
  2. Step 2: Convert to fraction form
    8,117.12/11,200.20 = 4,974.32/x
  3. Step 3: Cross multiply
    8,117.12x = 11,200.20 × 4,974.32
  4. Step 4: Simplify right side
    8,117.12x = 55,713,378.86
  5. Step 5: Solve for x
    x = 55,713,378.86/8,117.12
  6. Step 6: Final answer
    x = 6,863.69

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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.