Home / 15,404.62-21,258.66-9,035.78

Finding the Fourth Proportional to 15,404.62, 21,258.66 and 9,035.78

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Solution

The fourth proportional to 15,404.62, 21,258.66 and 9,035.78 is: 12,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.62 : 21,258.66 = 9,035.78 : x
  2. Step 2: Convert to fraction form
    15,404.62/21,258.66 = 9,035.78/x
  3. Step 3: Cross multiply
    15,404.62x = 21,258.66 × 9,035.78
  4. Step 4: Simplify right side
    15,404.62x = 192,088,574.85
  5. Step 5: Solve for x
    x = 192,088,574.85/15,404.62
  6. Step 6: Final answer
    x = 12,469.54

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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.