Home / 9,138.48-13,707.84-3,294.72

Finding the Fourth Proportional to 9,138.48, 13,707.84 and 3,294.72

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Solution

The fourth proportional to 9,138.48, 13,707.84 and 3,294.72 is: 4,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.48 : 13,707.84 = 3,294.72 : x
  2. Step 2: Convert to fraction form
    9,138.48/13,707.84 = 3,294.72/x
  3. Step 3: Cross multiply
    9,138.48x = 13,707.84 × 3,294.72
  4. Step 4: Simplify right side
    9,138.48x = 45,163,494.60
  5. Step 5: Solve for x
    x = 45,163,494.60/9,138.48
  6. Step 6: Final answer
    x = 4,942.12

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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.