Home / 16,758.65-23,121.31-9,489.75

Finding the Fourth Proportional to 16,758.65, 23,121.31 and 9,489.75

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Solution

The fourth proportional to 16,758.65, 23,121.31 and 9,489.75 is: 13,092.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,758.65 : 23,121.31 = 9,489.75 : x
  2. Step 2: Convert to fraction form
    16,758.65/23,121.31 = 9,489.75/x
  3. Step 3: Cross multiply
    16,758.65x = 23,121.31 × 9,489.75
  4. Step 4: Simplify right side
    16,758.65x = 219,415,451.57
  5. Step 5: Solve for x
    x = 219,415,451.57/16,758.65
  6. Step 6: Final answer
    x = 13,092.67

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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.