Home / 8,122.64-11,209.44-4,585.90

Finding the Fourth Proportional to 8,122.64, 11,209.44 and 4,585.90

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Solution

The fourth proportional to 8,122.64, 11,209.44 and 4,585.90 is: 6,328.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.64 : 11,209.44 = 4,585.90 : x
  2. Step 2: Convert to fraction form
    8,122.64/11,209.44 = 4,585.90/x
  3. Step 3: Cross multiply
    8,122.64x = 11,209.44 × 4,585.90
  4. Step 4: Simplify right side
    8,122.64x = 51,405,370.90
  5. Step 5: Solve for x
    x = 51,405,370.90/8,122.64
  6. Step 6: Final answer
    x = 6,328.65

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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.