Home / 12,726.68-19,083.52-5,329.12

Finding the Fourth Proportional to 12,726.68, 19,083.52 and 5,329.12

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Solution

The fourth proportional to 12,726.68, 19,083.52 and 5,329.12 is: 7,990.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.68 : 19,083.52 = 5,329.12 : x
  2. Step 2: Convert to fraction form
    12,726.68/19,083.52 = 5,329.12/x
  3. Step 3: Cross multiply
    12,726.68x = 19,083.52 × 5,329.12
  4. Step 4: Simplify right side
    12,726.68x = 101,698,368.10
  5. Step 5: Solve for x
    x = 101,698,368.10/12,726.68
  6. Step 6: Final answer
    x = 7,990.96

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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.