Home / 18,078.67-24,951.54-12,408.75

Finding the Fourth Proportional to 18,078.67, 24,951.54 and 12,408.75

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Solution

The fourth proportional to 18,078.67, 24,951.54 and 12,408.75 is: 17,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,078.67 : 24,951.54 = 12,408.75 : x
  2. Step 2: Convert to fraction form
    18,078.67/24,951.54 = 12,408.75/x
  3. Step 3: Cross multiply
    18,078.67x = 24,951.54 × 12,408.75
  4. Step 4: Simplify right side
    18,078.67x = 309,617,421.98
  5. Step 5: Solve for x
    x = 309,617,421.98/18,078.67
  6. Step 6: Final answer
    x = 17,126.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.