Home / 15,536.61-21,440.79-8,822.43

Finding the Fourth Proportional to 15,536.61, 21,440.79 and 8,822.43

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Solution

The fourth proportional to 15,536.61, 21,440.79 and 8,822.43 is: 12,175.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.61 : 21,440.79 = 8,822.43 : x
  2. Step 2: Convert to fraction form
    15,536.61/21,440.79 = 8,822.43/x
  3. Step 3: Cross multiply
    15,536.61x = 21,440.79 × 8,822.43
  4. Step 4: Simplify right side
    15,536.61x = 189,159,868.92
  5. Step 5: Solve for x
    x = 189,159,868.92/15,536.61
  6. Step 6: Final answer
    x = 12,175.11

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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.