Home / 12,913.57-19,372.29-5,518

Finding the Fourth Proportional to 12,913.57, 19,372.29 and 5,518

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Solution

The fourth proportional to 12,913.57, 19,372.29 and 5,518 is: 8,277.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.57 : 19,372.29 = 5,518 : x
  2. Step 2: Convert to fraction form
    12,913.57/19,372.29 = 5,518/x
  3. Step 3: Cross multiply
    12,913.57x = 19,372.29 × 5,518
  4. Step 4: Simplify right side
    12,913.57x = 106,896,296.22
  5. Step 5: Solve for x
    x = 106,896,296.22/12,913.57
  6. Step 6: Final answer
    x = 8,277.83

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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.