Home / 11,144.30-15,379.43-6,108.75

Finding the Fourth Proportional to 11,144.30, 15,379.43 and 6,108.75

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Solution

The fourth proportional to 11,144.30, 15,379.43 and 6,108.75 is: 8,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.30 : 15,379.43 = 6,108.75 : x
  2. Step 2: Convert to fraction form
    11,144.30/15,379.43 = 6,108.75/x
  3. Step 3: Cross multiply
    11,144.30x = 15,379.43 × 6,108.75
  4. Step 4: Simplify right side
    11,144.30x = 93,949,062.47
  5. Step 5: Solve for x
    x = 93,949,062.47/11,144.30
  6. Step 6: Final answer
    x = 8,430.24

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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.