Home / 11,221.20-16,831.80-10,710.90

Finding the Fourth Proportional to 11,221.20, 16,831.80 and 10,710.90

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Solution

The fourth proportional to 11,221.20, 16,831.80 and 10,710.90 is: 16,066.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.20 : 16,831.80 = 10,710.90 : x
  2. Step 2: Convert to fraction form
    11,221.20/16,831.80 = 10,710.90/x
  3. Step 3: Cross multiply
    11,221.20x = 16,831.80 × 10,710.90
  4. Step 4: Simplify right side
    11,221.20x = 180,283,726.62
  5. Step 5: Solve for x
    x = 180,283,726.62/11,221.20
  6. Step 6: Final answer
    x = 16,066.35

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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.