Home / 10,885.72-15,022.44-6,409.48

Finding the Fourth Proportional to 10,885.72, 15,022.44 and 6,409.48

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Solution

The fourth proportional to 10,885.72, 15,022.44 and 6,409.48 is: 8,845.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.72 : 15,022.44 = 6,409.48 : x
  2. Step 2: Convert to fraction form
    10,885.72/15,022.44 = 6,409.48/x
  3. Step 3: Cross multiply
    10,885.72x = 15,022.44 × 6,409.48
  4. Step 4: Simplify right side
    10,885.72x = 96,286,028.73
  5. Step 5: Solve for x
    x = 96,286,028.73/10,885.72
  6. Step 6: Final answer
    x = 8,845.17

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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.