Home / 13,922.28-19,212.69-7,634.64

Finding the Fourth Proportional to 13,922.28, 19,212.69 and 7,634.64

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Solution

The fourth proportional to 13,922.28, 19,212.69 and 7,634.64 is: 10,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.28 : 19,212.69 = 7,634.64 : x
  2. Step 2: Convert to fraction form
    13,922.28/19,212.69 = 7,634.64/x
  3. Step 3: Cross multiply
    13,922.28x = 19,212.69 × 7,634.64
  4. Step 4: Simplify right side
    13,922.28x = 146,681,971.58
  5. Step 5: Solve for x
    x = 146,681,971.58/13,922.28
  6. Step 6: Final answer
    x = 10,535.77

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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.