Home / 11,278.12-16,912.68-3,484.84

Finding the Fourth Proportional to 11,278.12, 16,912.68 and 3,484.84

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Solution

The fourth proportional to 11,278.12, 16,912.68 and 3,484.84 is: 5,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.12 : 16,912.68 = 3,484.84 : x
  2. Step 2: Convert to fraction form
    11,278.12/16,912.68 = 3,484.84/x
  3. Step 3: Cross multiply
    11,278.12x = 16,912.68 × 3,484.84
  4. Step 4: Simplify right side
    11,278.12x = 58,937,983.77
  5. Step 5: Solve for x
    x = 58,937,983.77/11,278.12
  6. Step 6: Final answer
    x = 5,225.87

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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.