Home / 15,822.70-21,834.41-8,748.66

Finding the Fourth Proportional to 15,822.70, 21,834.41 and 8,748.66

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Solution

The fourth proportional to 15,822.70, 21,834.41 and 8,748.66 is: 12,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.70 : 21,834.41 = 8,748.66 : x
  2. Step 2: Convert to fraction form
    15,822.70/21,834.41 = 8,748.66/x
  3. Step 3: Cross multiply
    15,822.70x = 21,834.41 × 8,748.66
  4. Step 4: Simplify right side
    15,822.70x = 191,021,851.26
  5. Step 5: Solve for x
    x = 191,021,851.26/15,822.70
  6. Step 6: Final answer
    x = 12,072.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.