Home / 13,324.29-19,982.95-3,961.78

Finding the Fourth Proportional to 13,324.29, 19,982.95 and 3,961.78

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Solution

The fourth proportional to 13,324.29, 19,982.95 and 3,961.78 is: 5,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.29 : 19,982.95 = 3,961.78 : x
  2. Step 2: Convert to fraction form
    13,324.29/19,982.95 = 3,961.78/x
  3. Step 3: Cross multiply
    13,324.29x = 19,982.95 × 3,961.78
  4. Step 4: Simplify right side
    13,324.29x = 79,168,031.84
  5. Step 5: Solve for x
    x = 79,168,031.84/13,324.29
  6. Step 6: Final answer
    x = 5,941.63

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1.5x scale

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.