Home / 11,105.46-15,334.36-6,862.68

Finding the Fourth Proportional to 11,105.46, 15,334.36 and 6,862.68

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Solution

The fourth proportional to 11,105.46, 15,334.36 and 6,862.68 is: 9,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.46 : 15,334.36 = 6,862.68 : x
  2. Step 2: Convert to fraction form
    11,105.46/15,334.36 = 6,862.68/x
  3. Step 3: Cross multiply
    11,105.46x = 15,334.36 × 6,862.68
  4. Step 4: Simplify right side
    11,105.46x = 105,234,805.68
  5. Step 5: Solve for x
    x = 105,234,805.68/11,105.46
  6. Step 6: Final answer
    x = 9,475.95

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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.