Home / 12,339.24-17,033.70-7,868.94

Finding the Fourth Proportional to 12,339.24, 17,033.70 and 7,868.94

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Solution

The fourth proportional to 12,339.24, 17,033.70 and 7,868.94 is: 10,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.24 : 17,033.70 = 7,868.94 : x
  2. Step 2: Convert to fraction form
    12,339.24/17,033.70 = 7,868.94/x
  3. Step 3: Cross multiply
    12,339.24x = 17,033.70 × 7,868.94
  4. Step 4: Simplify right side
    12,339.24x = 134,037,163.28
  5. Step 5: Solve for x
    x = 134,037,163.28/12,339.24
  6. Step 6: Final answer
    x = 10,862.68

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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.