Home / 11,379.69-15,703.57-6,344.12

Finding the Fourth Proportional to 11,379.69, 15,703.57 and 6,344.12

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Solution

The fourth proportional to 11,379.69, 15,703.57 and 6,344.12 is: 8,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.69 : 15,703.57 = 6,344.12 : x
  2. Step 2: Convert to fraction form
    11,379.69/15,703.57 = 6,344.12/x
  3. Step 3: Cross multiply
    11,379.69x = 15,703.57 × 6,344.12
  4. Step 4: Simplify right side
    11,379.69x = 99,625,379.70
  5. Step 5: Solve for x
    x = 99,625,379.70/11,379.69
  6. Step 6: Final answer
    x = 8,754.67

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Double scale
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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.