Home / 13,912.32-20,763.96-12,029.88

Finding the Fourth Proportional to 13,912.32, 20,763.96 and 12,029.88

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Solution

The fourth proportional to 13,912.32, 20,763.96 and 12,029.88 is: 17,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.32 : 20,763.96 = 12,029.88 : x
  2. Step 2: Convert to fraction form
    13,912.32/20,763.96 = 12,029.88/x
  3. Step 3: Cross multiply
    13,912.32x = 20,763.96 × 12,029.88
  4. Step 4: Simplify right side
    13,912.32x = 249,787,947.12
  5. Step 5: Solve for x
    x = 249,787,947.12/13,912.32
  6. Step 6: Final answer
    x = 17,954.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.