Home / 7,871.09-11,823.96-4,752.95

Finding the Fourth Proportional to 7,871.09, 11,823.96 and 4,752.95

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Solution

The fourth proportional to 7,871.09, 11,823.96 and 4,752.95 is: 7,139.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.09 : 11,823.96 = 4,752.95 : x
  2. Step 2: Convert to fraction form
    7,871.09/11,823.96 = 4,752.95/x
  3. Step 3: Cross multiply
    7,871.09x = 11,823.96 × 4,752.95
  4. Step 4: Simplify right side
    7,871.09x = 56,198,622.65
  5. Step 5: Solve for x
    x = 56,198,622.65/7,871.09
  6. Step 6: Final answer
    x = 7,139.88

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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.