Home / 11,178.24-15,432.73-7,404.62

Finding the Fourth Proportional to 11,178.24, 15,432.73 and 7,404.62

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Solution

The fourth proportional to 11,178.24, 15,432.73 and 7,404.62 is: 10,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.24 : 15,432.73 = 7,404.62 : x
  2. Step 2: Convert to fraction form
    11,178.24/15,432.73 = 7,404.62/x
  3. Step 3: Cross multiply
    11,178.24x = 15,432.73 × 7,404.62
  4. Step 4: Simplify right side
    11,178.24x = 114,273,405.54
  5. Step 5: Solve for x
    x = 114,273,405.54/11,178.24
  6. Step 6: Final answer
    x = 10,222.85

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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.