Home / 13,947.96-19,248.53-7,660.34

Finding the Fourth Proportional to 13,947.96, 19,248.53 and 7,660.34

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Solution

The fourth proportional to 13,947.96, 19,248.53 and 7,660.34 is: 10,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.96 : 19,248.53 = 7,660.34 : x
  2. Step 2: Convert to fraction form
    13,947.96/19,248.53 = 7,660.34/x
  3. Step 3: Cross multiply
    13,947.96x = 19,248.53 × 7,660.34
  4. Step 4: Simplify right side
    13,947.96x = 147,450,284.30
  5. Step 5: Solve for x
    x = 147,450,284.30/13,947.96
  6. Step 6: Final answer
    x = 10,571.46

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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.