Home / 13,947.91-19,248.11-7,660.29

Finding the Fourth Proportional to 13,947.91, 19,248.11 and 7,660.29

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Solution

The fourth proportional to 13,947.91, 19,248.11 and 7,660.29 is: 10,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.91 : 19,248.11 = 7,660.29 : x
  2. Step 2: Convert to fraction form
    13,947.91/19,248.11 = 7,660.29/x
  3. Step 3: Cross multiply
    13,947.91x = 19,248.11 × 7,660.29
  4. Step 4: Simplify right side
    13,947.91x = 147,446,104.55
  5. Step 5: Solve for x
    x = 147,446,104.55/13,947.91
  6. Step 6: Final answer
    x = 10,571.20

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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.