Home / 12,871.29-19,309.38-4,550.35

Finding the Fourth Proportional to 12,871.29, 19,309.38 and 4,550.35

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Solution

The fourth proportional to 12,871.29, 19,309.38 and 4,550.35 is: 6,826.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.29 : 19,309.38 = 4,550.35 : x
  2. Step 2: Convert to fraction form
    12,871.29/19,309.38 = 4,550.35/x
  3. Step 3: Cross multiply
    12,871.29x = 19,309.38 × 4,550.35
  4. Step 4: Simplify right side
    12,871.29x = 87,864,437.28
  5. Step 5: Solve for x
    x = 87,864,437.28/12,871.29
  6. Step 6: Final answer
    x = 6,826.39

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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.