Home / 11,144.70-15,379.72-6,108.90

Finding the Fourth Proportional to 11,144.70, 15,379.72 and 6,108.90

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Solution

The fourth proportional to 11,144.70, 15,379.72 and 6,108.90 is: 8,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.70 : 15,379.72 = 6,108.90 : x
  2. Step 2: Convert to fraction form
    11,144.70/15,379.72 = 6,108.90/x
  3. Step 3: Cross multiply
    11,144.70x = 15,379.72 × 6,108.90
  4. Step 4: Simplify right side
    11,144.70x = 93,953,171.51
  5. Step 5: Solve for x
    x = 93,953,171.51/11,144.70
  6. Step 6: Final answer
    x = 8,430.30

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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.