Home / 12,910.69-19,361.80-5,012.65

Finding the Fourth Proportional to 12,910.69, 19,361.80 and 5,012.65

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Solution

The fourth proportional to 12,910.69, 19,361.80 and 5,012.65 is: 7,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.69 : 19,361.80 = 5,012.65 : x
  2. Step 2: Convert to fraction form
    12,910.69/19,361.80 = 5,012.65/x
  3. Step 3: Cross multiply
    12,910.69x = 19,361.80 × 5,012.65
  4. Step 4: Simplify right side
    12,910.69x = 97,053,957.24
  5. Step 5: Solve for x
    x = 97,053,957.24/12,910.69
  6. Step 6: Final answer
    x = 7,517.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.