Home / 9,868.23-13,617.79-5,391.95

Finding the Fourth Proportional to 9,868.23, 13,617.79 and 5,391.95

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Solution

The fourth proportional to 9,868.23, 13,617.79 and 5,391.95 is: 7,440.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.23 : 13,617.79 = 5,391.95 : x
  2. Step 2: Convert to fraction form
    9,868.23/13,617.79 = 5,391.95/x
  3. Step 3: Cross multiply
    9,868.23x = 13,617.79 × 5,391.95
  4. Step 4: Simplify right side
    9,868.23x = 73,426,361.22
  5. Step 5: Solve for x
    x = 73,426,361.22/9,868.23
  6. Step 6: Final answer
    x = 7,440.68

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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.