Home / 9,319.86-13,979.69-3,771.70

Finding the Fourth Proportional to 9,319.86, 13,979.69 and 3,771.70

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Solution

The fourth proportional to 9,319.86, 13,979.69 and 3,771.70 is: 5,657.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.86 : 13,979.69 = 3,771.70 : x
  2. Step 2: Convert to fraction form
    9,319.86/13,979.69 = 3,771.70/x
  3. Step 3: Cross multiply
    9,319.86x = 13,979.69 × 3,771.70
  4. Step 4: Simplify right side
    9,319.86x = 52,727,157.11
  5. Step 5: Solve for x
    x = 52,727,157.11/9,319.86
  6. Step 6: Final answer
    x = 5,657.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.