Home / 18,088.08-27,128.46-4,939.35

Finding the Fourth Proportional to 18,088.08, 27,128.46 and 4,939.35

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Solution

The fourth proportional to 18,088.08, 27,128.46 and 4,939.35 is: 7,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,088.08 : 27,128.46 = 4,939.35 : x
  2. Step 2: Convert to fraction form
    18,088.08/27,128.46 = 4,939.35/x
  3. Step 3: Cross multiply
    18,088.08x = 27,128.46 × 4,939.35
  4. Step 4: Simplify right side
    18,088.08x = 133,996,958.90
  5. Step 5: Solve for x
    x = 133,996,958.90/18,088.08
  6. Step 6: Final answer
    x = 7,408.03

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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.