Home / 19,363.62-28,990.89-12,326.34

Finding the Fourth Proportional to 19,363.62, 28,990.89 and 12,326.34

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Solution

The fourth proportional to 19,363.62, 28,990.89 and 12,326.34 is: 18,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.62 : 28,990.89 = 12,326.34 : x
  2. Step 2: Convert to fraction form
    19,363.62/28,990.89 = 12,326.34/x
  3. Step 3: Cross multiply
    19,363.62x = 28,990.89 × 12,326.34
  4. Step 4: Simplify right side
    19,363.62x = 357,351,567.04
  5. Step 5: Solve for x
    x = 357,351,567.04/19,363.62
  6. Step 6: Final answer
    x = 18,454.79

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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.