Home / 18,088.62-27,128.67-4,937.86

Finding the Fourth Proportional to 18,088.62, 27,128.67 and 4,937.86

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Solution

The fourth proportional to 18,088.62, 27,128.67 and 4,937.86 is: 7,405.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,088.62 : 27,128.67 = 4,937.86 : x
  2. Step 2: Convert to fraction form
    18,088.62/27,128.67 = 4,937.86/x
  3. Step 3: Cross multiply
    18,088.62x = 27,128.67 × 4,937.86
  4. Step 4: Simplify right side
    18,088.62x = 133,957,574.45
  5. Step 5: Solve for x
    x = 133,957,574.45/18,088.62
  6. Step 6: Final answer
    x = 7,405.63

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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.