Home / 7,863.19-11,785.85-4,109.18

Finding the Fourth Proportional to 7,863.19, 11,785.85 and 4,109.18

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Solution

The fourth proportional to 7,863.19, 11,785.85 and 4,109.18 is: 6,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.19 : 11,785.85 = 4,109.18 : x
  2. Step 2: Convert to fraction form
    7,863.19/11,785.85 = 4,109.18/x
  3. Step 3: Cross multiply
    7,863.19x = 11,785.85 × 4,109.18
  4. Step 4: Simplify right side
    7,863.19x = 48,430,217.82
  5. Step 5: Solve for x
    x = 48,430,217.82/7,863.19
  6. Step 6: Final answer
    x = 6,159.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.