Home / 13,964.39-20,946.05-3,434.45

Finding the Fourth Proportional to 13,964.39, 20,946.05 and 3,434.45

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Solution

The fourth proportional to 13,964.39, 20,946.05 and 3,434.45 is: 5,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.39 : 20,946.05 = 3,434.45 : x
  2. Step 2: Convert to fraction form
    13,964.39/20,946.05 = 3,434.45/x
  3. Step 3: Cross multiply
    13,964.39x = 20,946.05 × 3,434.45
  4. Step 4: Simplify right side
    13,964.39x = 71,938,039.52
  5. Step 5: Solve for x
    x = 71,938,039.52/13,964.39
  6. Step 6: Final answer
    x = 5,151.54

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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.