Home / 10,790.78-16,188.17-4,216.57

Finding the Fourth Proportional to 10,790.78, 16,188.17 and 4,216.57

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Solution

The fourth proportional to 10,790.78, 16,188.17 and 4,216.57 is: 6,325.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.78 : 16,188.17 = 4,216.57 : x
  2. Step 2: Convert to fraction form
    10,790.78/16,188.17 = 4,216.57/x
  3. Step 3: Cross multiply
    10,790.78x = 16,188.17 × 4,216.57
  4. Step 4: Simplify right side
    10,790.78x = 68,258,551.98
  5. Step 5: Solve for x
    x = 68,258,551.98/10,790.78
  6. Step 6: Final answer
    x = 6,325.64

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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.