Home / 10,812.63-16,221.65-3,021.38

Finding the Fourth Proportional to 10,812.63, 16,221.65 and 3,021.38

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Solution

The fourth proportional to 10,812.63, 16,221.65 and 3,021.38 is: 4,532.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.63 : 16,221.65 = 3,021.38 : x
  2. Step 2: Convert to fraction form
    10,812.63/16,221.65 = 3,021.38/x
  3. Step 3: Cross multiply
    10,812.63x = 16,221.65 × 3,021.38
  4. Step 4: Simplify right side
    10,812.63x = 49,011,672.66
  5. Step 5: Solve for x
    x = 49,011,672.66/10,812.63
  6. Step 6: Final answer
    x = 4,532.82

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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.