Home / 9,318.51-13,977.38-3,771.90

Finding the Fourth Proportional to 9,318.51, 13,977.38 and 3,771.90

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Solution

The fourth proportional to 9,318.51, 13,977.38 and 3,771.90 is: 5,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.51 : 13,977.38 = 3,771.90 : x
  2. Step 2: Convert to fraction form
    9,318.51/13,977.38 = 3,771.90/x
  3. Step 3: Cross multiply
    9,318.51x = 13,977.38 × 3,771.90
  4. Step 4: Simplify right side
    9,318.51x = 52,721,289.05
  5. Step 5: Solve for x
    x = 52,721,289.05/9,318.51
  6. Step 6: Final answer
    x = 5,657.70

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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.