Home / 13,949.20-19,256.70-10,955.44

Finding the Fourth Proportional to 13,949.20, 19,256.70 and 10,955.44

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Solution

The fourth proportional to 13,949.20, 19,256.70 and 10,955.44 is: 15,123.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.20 : 19,256.70 = 10,955.44 : x
  2. Step 2: Convert to fraction form
    13,949.20/19,256.70 = 10,955.44/x
  3. Step 3: Cross multiply
    13,949.20x = 19,256.70 × 10,955.44
  4. Step 4: Simplify right side
    13,949.20x = 210,965,621.45
  5. Step 5: Solve for x
    x = 210,965,621.45/13,949.20
  6. Step 6: Final answer
    x = 15,123.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.