Home / 15,821.52-21,833.52-8,748.06

Finding the Fourth Proportional to 15,821.52, 21,833.52 and 8,748.06

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Solution

The fourth proportional to 15,821.52, 21,833.52 and 8,748.06 is: 12,072.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.52 : 21,833.52 = 8,748.06 : x
  2. Step 2: Convert to fraction form
    15,821.52/21,833.52 = 8,748.06/x
  3. Step 3: Cross multiply
    15,821.52x = 21,833.52 × 8,748.06
  4. Step 4: Simplify right side
    15,821.52x = 191,000,942.97
  5. Step 5: Solve for x
    x = 191,000,942.97/15,821.52
  6. Step 6: Final answer
    x = 12,072.22

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1.5x scale

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.