Home / 13,882.83-20,783.33-8,937.78

Finding the Fourth Proportional to 13,882.83, 20,783.33 and 8,937.78

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Solution

The fourth proportional to 13,882.83, 20,783.33 and 8,937.78 is: 13,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,882.83 : 20,783.33 = 8,937.78 : x
  2. Step 2: Convert to fraction form
    13,882.83/20,783.33 = 8,937.78/x
  3. Step 3: Cross multiply
    13,882.83x = 20,783.33 × 8,937.78
  4. Step 4: Simplify right side
    13,882.83x = 185,756,831.21
  5. Step 5: Solve for x
    x = 185,756,831.21/13,882.83
  6. Step 6: Final answer
    x = 13,380.33

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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.