Home / 18,134.36-27,188.77-7,031.69

Finding the Fourth Proportional to 18,134.36, 27,188.77 and 7,031.69

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Solution

The fourth proportional to 18,134.36, 27,188.77 and 7,031.69 is: 10,542.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.36 : 27,188.77 = 7,031.69 : x
  2. Step 2: Convert to fraction form
    18,134.36/27,188.77 = 7,031.69/x
  3. Step 3: Cross multiply
    18,134.36x = 27,188.77 × 7,031.69
  4. Step 4: Simplify right side
    18,134.36x = 191,182,831.02
  5. Step 5: Solve for x
    x = 191,182,831.02/18,134.36
  6. Step 6: Final answer
    x = 10,542.58

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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.