Home / 13,947.75-19,247.94-7,659.99

Finding the Fourth Proportional to 13,947.75, 19,247.94 and 7,659.99

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Solution

The fourth proportional to 13,947.75, 19,247.94 and 7,659.99 is: 10,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.75 : 19,247.94 = 7,659.99 : x
  2. Step 2: Convert to fraction form
    13,947.75/19,247.94 = 7,659.99/x
  3. Step 3: Cross multiply
    13,947.75x = 19,247.94 × 7,659.99
  4. Step 4: Simplify right side
    13,947.75x = 147,439,027.92
  5. Step 5: Solve for x
    x = 147,439,027.92/13,947.75
  6. Step 6: Final answer
    x = 10,570.81

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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.