Home / 11,886.50-17,835.83-4,871.70

Finding the Fourth Proportional to 11,886.50, 17,835.83 and 4,871.70

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Solution

The fourth proportional to 11,886.50, 17,835.83 and 4,871.70 is: 7,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.50 : 17,835.83 = 4,871.70 : x
  2. Step 2: Convert to fraction form
    11,886.50/17,835.83 = 4,871.70/x
  3. Step 3: Cross multiply
    11,886.50x = 17,835.83 × 4,871.70
  4. Step 4: Simplify right side
    11,886.50x = 86,890,788.65
  5. Step 5: Solve for x
    x = 86,890,788.65/11,886.50
  6. Step 6: Final answer
    x = 7,310.04

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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.