Home / 13,947.14-19,250.50-7,982.21

Finding the Fourth Proportional to 13,947.14, 19,250.50 and 7,982.21

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Solution

The fourth proportional to 13,947.14, 19,250.50 and 7,982.21 is: 11,017.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.14 : 19,250.50 = 7,982.21 : x
  2. Step 2: Convert to fraction form
    13,947.14/19,250.50 = 7,982.21/x
  3. Step 3: Cross multiply
    13,947.14x = 19,250.50 × 7,982.21
  4. Step 4: Simplify right side
    13,947.14x = 153,661,484.30
  5. Step 5: Solve for x
    x = 153,661,484.30/13,947.14
  6. Step 6: Final answer
    x = 11,017.42

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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.