Home / 11,280.21-16,921.95-3,489.63

Finding the Fourth Proportional to 11,280.21, 16,921.95 and 3,489.63

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Solution

The fourth proportional to 11,280.21, 16,921.95 and 3,489.63 is: 5,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.21 : 16,921.95 = 3,489.63 : x
  2. Step 2: Convert to fraction form
    11,280.21/16,921.95 = 3,489.63/x
  3. Step 3: Cross multiply
    11,280.21x = 16,921.95 × 3,489.63
  4. Step 4: Simplify right side
    11,280.21x = 59,051,344.38
  5. Step 5: Solve for x
    x = 59,051,344.38/11,280.21
  6. Step 6: Final answer
    x = 5,234.95

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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.