Home / 11,151.30-16,726.91-2,831.30

Finding the Fourth Proportional to 11,151.30, 16,726.91 and 2,831.30

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Solution

The fourth proportional to 11,151.30, 16,726.91 and 2,831.30 is: 4,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.30 : 16,726.91 = 2,831.30 : x
  2. Step 2: Convert to fraction form
    11,151.30/16,726.91 = 2,831.30/x
  3. Step 3: Cross multiply
    11,151.30x = 16,726.91 × 2,831.30
  4. Step 4: Simplify right side
    11,151.30x = 47,358,802.49
  5. Step 5: Solve for x
    x = 47,358,802.49/11,151.30
  6. Step 6: Final answer
    x = 4,246.93

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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.