Home / 13,949.28-19,250.40-7,662.08

Finding the Fourth Proportional to 13,949.28, 19,250.40 and 7,662.08

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Solution

The fourth proportional to 13,949.28, 19,250.40 and 7,662.08 is: 10,573.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.28 : 19,250.40 = 7,662.08 : x
  2. Step 2: Convert to fraction form
    13,949.28/19,250.40 = 7,662.08/x
  3. Step 3: Cross multiply
    13,949.28x = 19,250.40 × 7,662.08
  4. Step 4: Simplify right side
    13,949.28x = 147,498,104.83
  5. Step 5: Solve for x
    x = 147,498,104.83/13,949.28
  6. Step 6: Final answer
    x = 10,573.89

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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.