Home / 8,122.56-11,209.32-4,585.80

Finding the Fourth Proportional to 8,122.56, 11,209.32 and 4,585.80

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Solution

The fourth proportional to 8,122.56, 11,209.32 and 4,585.80 is: 6,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.56 : 11,209.32 = 4,585.80 : x
  2. Step 2: Convert to fraction form
    8,122.56/11,209.32 = 4,585.80/x
  3. Step 3: Cross multiply
    8,122.56x = 11,209.32 × 4,585.80
  4. Step 4: Simplify right side
    8,122.56x = 51,403,699.66
  5. Step 5: Solve for x
    x = 51,403,699.66/8,122.56
  6. Step 6: Final answer
    x = 6,328.51

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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.