Home / 11,388.81-17,082.54-4,372.19

Finding the Fourth Proportional to 11,388.81, 17,082.54 and 4,372.19

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Solution

The fourth proportional to 11,388.81, 17,082.54 and 4,372.19 is: 6,558.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.81 : 17,082.54 = 4,372.19 : x
  2. Step 2: Convert to fraction form
    11,388.81/17,082.54 = 4,372.19/x
  3. Step 3: Cross multiply
    11,388.81x = 17,082.54 × 4,372.19
  4. Step 4: Simplify right side
    11,388.81x = 74,688,025.15
  5. Step 5: Solve for x
    x = 74,688,025.15/11,388.81
  6. Step 6: Final answer
    x = 6,558.02

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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.