Home / 15,258.06-21,053.69-8,543.97

Finding the Fourth Proportional to 15,258.06, 21,053.69 and 8,543.97

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Solution

The fourth proportional to 15,258.06, 21,053.69 and 8,543.97 is: 11,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.06 : 21,053.69 = 8,543.97 : x
  2. Step 2: Convert to fraction form
    15,258.06/21,053.69 = 8,543.97/x
  3. Step 3: Cross multiply
    15,258.06x = 21,053.69 × 8,543.97
  4. Step 4: Simplify right side
    15,258.06x = 179,882,095.75
  5. Step 5: Solve for x
    x = 179,882,095.75/15,258.06
  6. Step 6: Final answer
    x = 11,789.32

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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.