Home / 18,881.07-26,053.85-10,921.80

Finding the Fourth Proportional to 18,881.07, 26,053.85 and 10,921.80

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Solution

The fourth proportional to 18,881.07, 26,053.85 and 10,921.80 is: 15,070.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.07 : 26,053.85 = 10,921.80 : x
  2. Step 2: Convert to fraction form
    18,881.07/26,053.85 = 10,921.80/x
  3. Step 3: Cross multiply
    18,881.07x = 26,053.85 × 10,921.80
  4. Step 4: Simplify right side
    18,881.07x = 284,555,063.94
  5. Step 5: Solve for x
    x = 284,555,063.94/18,881.07
  6. Step 6: Final answer
    x = 15,070.92

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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.