Home / 12,868.76-17,759.14-10,039.33

Finding the Fourth Proportional to 12,868.76, 17,759.14 and 10,039.33

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Solution

The fourth proportional to 12,868.76, 17,759.14 and 10,039.33 is: 13,854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.76 : 17,759.14 = 10,039.33 : x
  2. Step 2: Convert to fraction form
    12,868.76/17,759.14 = 10,039.33/x
  3. Step 3: Cross multiply
    12,868.76x = 17,759.14 × 10,039.33
  4. Step 4: Simplify right side
    12,868.76x = 178,289,866.98
  5. Step 5: Solve for x
    x = 178,289,866.98/12,868.76
  6. Step 6: Final answer
    x = 13,854.47

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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.