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Finding the Fourth Proportional to 18,259.83, 27,389.78 and 4,408.83

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Solution

The fourth proportional to 18,259.83, 27,389.78 and 4,408.83 is: 6,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.83 : 27,389.78 = 4,408.83 : x
  2. Step 2: Convert to fraction form
    18,259.83/27,389.78 = 4,408.83/x
  3. Step 3: Cross multiply
    18,259.83x = 27,389.78 × 4,408.83
  4. Step 4: Simplify right side
    18,259.83x = 120,756,861.71
  5. Step 5: Solve for x
    x = 120,756,861.71/18,259.83
  6. Step 6: Final answer
    x = 6,613.25

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1.5x scale

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.