Home / 15,318.92-21,144.48-9,269.14

Finding the Fourth Proportional to 15,318.92, 21,144.48 and 9,269.14

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Solution

The fourth proportional to 15,318.92, 21,144.48 and 9,269.14 is: 12,794.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,318.92 : 21,144.48 = 9,269.14 : x
  2. Step 2: Convert to fraction form
    15,318.92/21,144.48 = 9,269.14/x
  3. Step 3: Cross multiply
    15,318.92x = 21,144.48 × 9,269.14
  4. Step 4: Simplify right side
    15,318.92x = 195,991,145.35
  5. Step 5: Solve for x
    x = 195,991,145.35/15,318.92
  6. Step 6: Final answer
    x = 12,794.06

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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.