Home / 11,144.84-15,379.76-6,109.34

Finding the Fourth Proportional to 11,144.84, 15,379.76 and 6,109.34

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Solution

The fourth proportional to 11,144.84, 15,379.76 and 6,109.34 is: 8,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.84 : 15,379.76 = 6,109.34 : x
  2. Step 2: Convert to fraction form
    11,144.84/15,379.76 = 6,109.34/x
  3. Step 3: Cross multiply
    11,144.84x = 15,379.76 × 6,109.34
  4. Step 4: Simplify right side
    11,144.84x = 93,960,182.96
  5. Step 5: Solve for x
    x = 93,960,182.96/11,144.84
  6. Step 6: Final answer
    x = 8,430.82

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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.