Home / 15,404.83-21,258.68-8,331.26

Finding the Fourth Proportional to 15,404.83, 21,258.68 and 8,331.26

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Solution

The fourth proportional to 15,404.83, 21,258.68 and 8,331.26 is: 11,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.83 : 21,258.68 = 8,331.26 : x
  2. Step 2: Convert to fraction form
    15,404.83/21,258.68 = 8,331.26/x
  3. Step 3: Cross multiply
    15,404.83x = 21,258.68 × 8,331.26
  4. Step 4: Simplify right side
    15,404.83x = 177,111,465.82
  5. Step 5: Solve for x
    x = 177,111,465.82/15,404.83
  6. Step 6: Final answer
    x = 11,497.14

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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.