Home / 11,230.15-16,849.20-4,989.61

Finding the Fourth Proportional to 11,230.15, 16,849.20 and 4,989.61

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Solution

The fourth proportional to 11,230.15, 16,849.20 and 4,989.61 is: 7,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,230.15 : 16,849.20 = 4,989.61 : x
  2. Step 2: Convert to fraction form
    11,230.15/16,849.20 = 4,989.61/x
  3. Step 3: Cross multiply
    11,230.15x = 16,849.20 × 4,989.61
  4. Step 4: Simplify right side
    11,230.15x = 84,070,936.81
  5. Step 5: Solve for x
    x = 84,070,936.81/11,230.15
  6. Step 6: Final answer
    x = 7,486.18

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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.