Home / 12,726.41-19,089.61-3,962.21

Finding the Fourth Proportional to 12,726.41, 19,089.61 and 3,962.21

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Solution

The fourth proportional to 12,726.41, 19,089.61 and 3,962.21 is: 5,943.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.41 : 19,089.61 = 3,962.21 : x
  2. Step 2: Convert to fraction form
    12,726.41/19,089.61 = 3,962.21/x
  3. Step 3: Cross multiply
    12,726.41x = 19,089.61 × 3,962.21
  4. Step 4: Simplify right side
    12,726.41x = 75,636,938.28
  5. Step 5: Solve for x
    x = 75,636,938.28/12,726.41
  6. Step 6: Final answer
    x = 5,943.31

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Similar ratio
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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.