Home / 13,189.96-19,787.91-4,424.65

Finding the Fourth Proportional to 13,189.96, 19,787.91 and 4,424.65

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Solution

The fourth proportional to 13,189.96, 19,787.91 and 4,424.65 is: 6,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.96 : 19,787.91 = 4,424.65 : x
  2. Step 2: Convert to fraction form
    13,189.96/19,787.91 = 4,424.65/x
  3. Step 3: Cross multiply
    13,189.96x = 19,787.91 × 4,424.65
  4. Step 4: Simplify right side
    13,189.96x = 87,554,553.86
  5. Step 5: Solve for x
    x = 87,554,553.86/13,189.96
  6. Step 6: Final answer
    x = 6,637.97

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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.