Home / 10,818.81-16,222.14-3,425.13

Finding the Fourth Proportional to 10,818.81, 16,222.14 and 3,425.13

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Solution

The fourth proportional to 10,818.81, 16,222.14 and 3,425.13 is: 5,135.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.81 : 16,222.14 = 3,425.13 : x
  2. Step 2: Convert to fraction form
    10,818.81/16,222.14 = 3,425.13/x
  3. Step 3: Cross multiply
    10,818.81x = 16,222.14 × 3,425.13
  4. Step 4: Simplify right side
    10,818.81x = 55,562,938.38
  5. Step 5: Solve for x
    x = 55,562,938.38/10,818.81
  6. Step 6: Final answer
    x = 5,135.77

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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.