Home / 15,258.30-21,055.83-8,544.30

Finding the Fourth Proportional to 15,258.30, 21,055.83 and 8,544.30

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Solution

The fourth proportional to 15,258.30, 21,055.83 and 8,544.30 is: 11,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.30 : 21,055.83 = 8,544.30 : x
  2. Step 2: Convert to fraction form
    15,258.30/21,055.83 = 8,544.30/x
  3. Step 3: Cross multiply
    15,258.30x = 21,055.83 × 8,544.30
  4. Step 4: Simplify right side
    15,258.30x = 179,907,328.27
  5. Step 5: Solve for x
    x = 179,907,328.27/15,258.30
  6. Step 6: Final answer
    x = 11,790.78

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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.