Home / 12,269.86-18,402.21-3,950.62

Finding the Fourth Proportional to 12,269.86, 18,402.21 and 3,950.62

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Solution

The fourth proportional to 12,269.86, 18,402.21 and 3,950.62 is: 5,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.86 : 18,402.21 = 3,950.62 : x
  2. Step 2: Convert to fraction form
    12,269.86/18,402.21 = 3,950.62/x
  3. Step 3: Cross multiply
    12,269.86x = 18,402.21 × 3,950.62
  4. Step 4: Simplify right side
    12,269.86x = 72,700,138.87
  5. Step 5: Solve for x
    x = 72,700,138.87/12,269.86
  6. Step 6: Final answer
    x = 5,925.10

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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.