Home / 18,810.66-28,196.09-6,956.82

Finding the Fourth Proportional to 18,810.66, 28,196.09 and 6,956.82

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Solution

The fourth proportional to 18,810.66, 28,196.09 and 6,956.82 is: 10,427.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.66 : 28,196.09 = 6,956.82 : x
  2. Step 2: Convert to fraction form
    18,810.66/28,196.09 = 6,956.82/x
  3. Step 3: Cross multiply
    18,810.66x = 28,196.09 × 6,956.82
  4. Step 4: Simplify right side
    18,810.66x = 196,154,981.85
  5. Step 5: Solve for x
    x = 196,154,981.85/18,810.66
  6. Step 6: Final answer
    x = 10,427.87

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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.