Home / 18,750.43-25,878.75-10,791.19

Finding the Fourth Proportional to 18,750.43, 25,878.75 and 10,791.19

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Solution

The fourth proportional to 18,750.43, 25,878.75 and 10,791.19 is: 14,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.43 : 25,878.75 = 10,791.19 : x
  2. Step 2: Convert to fraction form
    18,750.43/25,878.75 = 10,791.19/x
  3. Step 3: Cross multiply
    18,750.43x = 25,878.75 × 10,791.19
  4. Step 4: Simplify right side
    18,750.43x = 279,262,508.21
  5. Step 5: Solve for x
    x = 279,262,508.21/18,750.43
  6. Step 6: Final answer
    x = 14,893.66

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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.