Home / 9,309.40-13,950.36-7,339.75

Finding the Fourth Proportional to 9,309.40, 13,950.36 and 7,339.75

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Solution

The fourth proportional to 9,309.40, 13,950.36 and 7,339.75 is: 10,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.40 : 13,950.36 = 7,339.75 : x
  2. Step 2: Convert to fraction form
    9,309.40/13,950.36 = 7,339.75/x
  3. Step 3: Cross multiply
    9,309.40x = 13,950.36 × 7,339.75
  4. Step 4: Simplify right side
    9,309.40x = 102,392,119.93
  5. Step 5: Solve for x
    x = 102,392,119.93/9,309.40
  6. Step 6: Final answer
    x = 10,998.79

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1.5x scale

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.