Home / 11,438.24-15,783.90-6,401.52

Finding the Fourth Proportional to 11,438.24, 15,783.90 and 6,401.52

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Solution

The fourth proportional to 11,438.24, 15,783.90 and 6,401.52 is: 8,833.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.24 : 15,783.90 = 6,401.52 : x
  2. Step 2: Convert to fraction form
    11,438.24/15,783.90 = 6,401.52/x
  3. Step 3: Cross multiply
    11,438.24x = 15,783.90 × 6,401.52
  4. Step 4: Simplify right side
    11,438.24x = 101,040,951.53
  5. Step 5: Solve for x
    x = 101,040,951.53/11,438.24
  6. Step 6: Final answer
    x = 8,833.61

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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.