Home / 18,318-25,269.12-11,150.08

Finding the Fourth Proportional to 18,318, 25,269.12 and 11,150.08

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Solution

The fourth proportional to 18,318, 25,269.12 and 11,150.08 is: 15,381.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318 : 25,269.12 = 11,150.08 : x
  2. Step 2: Convert to fraction form
    18,318/25,269.12 = 11,150.08/x
  3. Step 3: Cross multiply
    18,318x = 25,269.12 × 11,150.08
  4. Step 4: Simplify right side
    18,318x = 281,752,709.53
  5. Step 5: Solve for x
    x = 281,752,709.53/18,318
  6. Step 6: Final answer
    x = 15,381.19

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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.