Home / 8,125.29-12,187.94-2,864.21

Finding the Fourth Proportional to 8,125.29, 12,187.94 and 2,864.21

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Solution

The fourth proportional to 8,125.29, 12,187.94 and 2,864.21 is: 4,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.29 : 12,187.94 = 2,864.21 : x
  2. Step 2: Convert to fraction form
    8,125.29/12,187.94 = 2,864.21/x
  3. Step 3: Cross multiply
    8,125.29x = 12,187.94 × 2,864.21
  4. Step 4: Simplify right side
    8,125.29x = 34,908,744.37
  5. Step 5: Solve for x
    x = 34,908,744.37/8,125.29
  6. Step 6: Final answer
    x = 4,296.31

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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.