Home / 11,946.29-17,921.71-3,941.55

Finding the Fourth Proportional to 11,946.29, 17,921.71 and 3,941.55

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Solution

The fourth proportional to 11,946.29, 17,921.71 and 3,941.55 is: 5,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.29 : 17,921.71 = 3,941.55 : x
  2. Step 2: Convert to fraction form
    11,946.29/17,921.71 = 3,941.55/x
  3. Step 3: Cross multiply
    11,946.29x = 17,921.71 × 3,941.55
  4. Step 4: Simplify right side
    11,946.29x = 70,639,306.20
  5. Step 5: Solve for x
    x = 70,639,306.20/11,946.29
  6. Step 6: Final answer
    x = 5,913.07

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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.