Home / 9,868.09-13,617.79-5,391.73

Finding the Fourth Proportional to 9,868.09, 13,617.79 and 5,391.73

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Solution

The fourth proportional to 9,868.09, 13,617.79 and 5,391.73 is: 7,440.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.09 : 13,617.79 = 5,391.73 : x
  2. Step 2: Convert to fraction form
    9,868.09/13,617.79 = 5,391.73/x
  3. Step 3: Cross multiply
    9,868.09x = 13,617.79 × 5,391.73
  4. Step 4: Simplify right side
    9,868.09x = 73,423,446.88
  5. Step 5: Solve for x
    x = 73,423,446.88/9,868.09
  6. Step 6: Final answer
    x = 7,440.49

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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.