Home / 13,933.05-20,898.78-10,188.66

Finding the Fourth Proportional to 13,933.05, 20,898.78 and 10,188.66

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Solution

The fourth proportional to 13,933.05, 20,898.78 and 10,188.66 is: 15,282.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.05 : 20,898.78 = 10,188.66 : x
  2. Step 2: Convert to fraction form
    13,933.05/20,898.78 = 10,188.66/x
  3. Step 3: Cross multiply
    13,933.05x = 20,898.78 × 10,188.66
  4. Step 4: Simplify right side
    13,933.05x = 212,930,563.83
  5. Step 5: Solve for x
    x = 212,930,563.83/13,933.05
  6. Step 6: Final answer
    x = 15,282.41

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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.