Home / 15,404.53-21,258.25-8,330.95

Finding the Fourth Proportional to 15,404.53, 21,258.25 and 8,330.95

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Solution

The fourth proportional to 15,404.53, 21,258.25 and 8,330.95 is: 11,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.53 : 21,258.25 = 8,330.95 : x
  2. Step 2: Convert to fraction form
    15,404.53/21,258.25 = 8,330.95/x
  3. Step 3: Cross multiply
    15,404.53x = 21,258.25 × 8,330.95
  4. Step 4: Simplify right side
    15,404.53x = 177,101,343.86
  5. Step 5: Solve for x
    x = 177,101,343.86/15,404.53
  6. Step 6: Final answer
    x = 11,496.71

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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.