Home / 13,919.54-19,209.76-7,952.45

Finding the Fourth Proportional to 13,919.54, 19,209.76 and 7,952.45

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Solution

The fourth proportional to 13,919.54, 19,209.76 and 7,952.45 is: 10,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.54 : 19,209.76 = 7,952.45 : x
  2. Step 2: Convert to fraction form
    13,919.54/19,209.76 = 7,952.45/x
  3. Step 3: Cross multiply
    13,919.54x = 19,209.76 × 7,952.45
  4. Step 4: Simplify right side
    13,919.54x = 152,764,539.98
  5. Step 5: Solve for x
    x = 152,764,539.98/13,919.54
  6. Step 6: Final answer
    x = 10,974.83

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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.