Home / 13,983.78-20,975.88-3,595.50

Finding the Fourth Proportional to 13,983.78, 20,975.88 and 3,595.50

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Solution

The fourth proportional to 13,983.78, 20,975.88 and 3,595.50 is: 5,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.78 : 20,975.88 = 3,595.50 : x
  2. Step 2: Convert to fraction form
    13,983.78/20,975.88 = 3,595.50/x
  3. Step 3: Cross multiply
    13,983.78x = 20,975.88 × 3,595.50
  4. Step 4: Simplify right side
    13,983.78x = 75,418,776.54
  5. Step 5: Solve for x
    x = 75,418,776.54/13,983.78
  6. Step 6: Final answer
    x = 5,393.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.