Home / 15,396.68-21,258.78-9,436.48

Finding the Fourth Proportional to 15,396.68, 21,258.78 and 9,436.48

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Solution

The fourth proportional to 15,396.68, 21,258.78 and 9,436.48 is: 13,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.68 : 21,258.78 = 9,436.48 : x
  2. Step 2: Convert to fraction form
    15,396.68/21,258.78 = 9,436.48/x
  3. Step 3: Cross multiply
    15,396.68x = 21,258.78 × 9,436.48
  4. Step 4: Simplify right side
    15,396.68x = 200,608,052.29
  5. Step 5: Solve for x
    x = 200,608,052.29/15,396.68
  6. Step 6: Final answer
    x = 13,029.31

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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.