Home / 11,887.11-17,831.08-5,643.91

Finding the Fourth Proportional to 11,887.11, 17,831.08 and 5,643.91

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Solution

The fourth proportional to 11,887.11, 17,831.08 and 5,643.91 is: 8,466.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.11 : 17,831.08 = 5,643.91 : x
  2. Step 2: Convert to fraction form
    11,887.11/17,831.08 = 5,643.91/x
  3. Step 3: Cross multiply
    11,887.11x = 17,831.08 × 5,643.91
  4. Step 4: Simplify right side
    11,887.11x = 100,637,010.72
  5. Step 5: Solve for x
    x = 100,637,010.72/11,887.11
  6. Step 6: Final answer
    x = 8,466.06

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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.