Home / 12,801.34-19,202.10-3,916.86

Finding the Fourth Proportional to 12,801.34, 19,202.10 and 3,916.86

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Solution

The fourth proportional to 12,801.34, 19,202.10 and 3,916.86 is: 5,875.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801.34 : 19,202.10 = 3,916.86 : x
  2. Step 2: Convert to fraction form
    12,801.34/19,202.10 = 3,916.86/x
  3. Step 3: Cross multiply
    12,801.34x = 19,202.10 × 3,916.86
  4. Step 4: Simplify right side
    12,801.34x = 75,211,937.41
  5. Step 5: Solve for x
    x = 75,211,937.41/12,801.34
  6. Step 6: Final answer
    x = 5,875.32

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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.