Home / 11,438.60-15,785.42-6,723

Finding the Fourth Proportional to 11,438.60, 15,785.42 and 6,723

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Solution

The fourth proportional to 11,438.60, 15,785.42 and 6,723 is: 9,277.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.60 : 15,785.42 = 6,723 : x
  2. Step 2: Convert to fraction form
    11,438.60/15,785.42 = 6,723/x
  3. Step 3: Cross multiply
    11,438.60x = 15,785.42 × 6,723
  4. Step 4: Simplify right side
    11,438.60x = 106,125,378.66
  5. Step 5: Solve for x
    x = 106,125,378.66/11,438.60
  6. Step 6: Final answer
    x = 9,277.83

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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.