Home / 11,190.92-16,753.95-8,429.22

Finding the Fourth Proportional to 11,190.92, 16,753.95 and 8,429.22

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Solution

The fourth proportional to 11,190.92, 16,753.95 and 8,429.22 is: 12,619.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.92 : 16,753.95 = 8,429.22 : x
  2. Step 2: Convert to fraction form
    11,190.92/16,753.95 = 8,429.22/x
  3. Step 3: Cross multiply
    11,190.92x = 16,753.95 × 8,429.22
  4. Step 4: Simplify right side
    11,190.92x = 141,222,730.42
  5. Step 5: Solve for x
    x = 141,222,730.42/11,190.92
  6. Step 6: Final answer
    x = 12,619.41

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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.