Home / 12,916.08-19,372.04-3,679.92

Finding the Fourth Proportional to 12,916.08, 19,372.04 and 3,679.92

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Solution

The fourth proportional to 12,916.08, 19,372.04 and 3,679.92 is: 5,519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.08 : 19,372.04 = 3,679.92 : x
  2. Step 2: Convert to fraction form
    12,916.08/19,372.04 = 3,679.92/x
  3. Step 3: Cross multiply
    12,916.08x = 19,372.04 × 3,679.92
  4. Step 4: Simplify right side
    12,916.08x = 71,287,557.44
  5. Step 5: Solve for x
    x = 71,287,557.44/12,916.08
  6. Step 6: Final answer
    x = 5,519.29

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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.