Home / 11,278.21-16,918.94-3,487.63

Finding the Fourth Proportional to 11,278.21, 16,918.94 and 3,487.63

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Solution

The fourth proportional to 11,278.21, 16,918.94 and 3,487.63 is: 5,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.21 : 16,918.94 = 3,487.63 : x
  2. Step 2: Convert to fraction form
    11,278.21/16,918.94 = 3,487.63/x
  3. Step 3: Cross multiply
    11,278.21x = 16,918.94 × 3,487.63
  4. Step 4: Simplify right side
    11,278.21x = 59,007,002.71
  5. Step 5: Solve for x
    x = 59,007,002.71/11,278.21
  6. Step 6: Final answer
    x = 5,231.95

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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.