Home / 11,158.92-15,399.36-6,123.60

Finding the Fourth Proportional to 11,158.92, 15,399.36 and 6,123.60

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Solution

The fourth proportional to 11,158.92, 15,399.36 and 6,123.60 is: 8,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.92 : 15,399.36 = 6,123.60 : x
  2. Step 2: Convert to fraction form
    11,158.92/15,399.36 = 6,123.60/x
  3. Step 3: Cross multiply
    11,158.92x = 15,399.36 × 6,123.60
  4. Step 4: Simplify right side
    11,158.92x = 94,299,520.90
  5. Step 5: Solve for x
    x = 94,299,520.90/11,158.92
  6. Step 6: Final answer
    x = 8,450.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.