Home / 13,176.78-19,763.09-4,292.43

Finding the Fourth Proportional to 13,176.78, 19,763.09 and 4,292.43

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Solution

The fourth proportional to 13,176.78, 19,763.09 and 4,292.43 is: 6,437.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.78 : 19,763.09 = 4,292.43 : x
  2. Step 2: Convert to fraction form
    13,176.78/19,763.09 = 4,292.43/x
  3. Step 3: Cross multiply
    13,176.78x = 19,763.09 × 4,292.43
  4. Step 4: Simplify right side
    13,176.78x = 84,831,680.41
  5. Step 5: Solve for x
    x = 84,831,680.41/13,176.78
  6. Step 6: Final answer
    x = 6,437.97

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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.