Home / 13,989.42-20,919.33-10,833.66

Finding the Fourth Proportional to 13,989.42, 20,919.33 and 10,833.66

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Solution

The fourth proportional to 13,989.42, 20,919.33 and 10,833.66 is: 16,200.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.42 : 20,919.33 = 10,833.66 : x
  2. Step 2: Convert to fraction form
    13,989.42/20,919.33 = 10,833.66/x
  3. Step 3: Cross multiply
    13,989.42x = 20,919.33 × 10,833.66
  4. Step 4: Simplify right side
    13,989.42x = 226,632,908.65
  5. Step 5: Solve for x
    x = 226,632,908.65/13,989.42
  6. Step 6: Final answer
    x = 16,200.31

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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.