Home / 18,645.29-25,730.50-10,147.44

Finding the Fourth Proportional to 18,645.29, 25,730.50 and 10,147.44

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Solution

The fourth proportional to 18,645.29, 25,730.50 and 10,147.44 is: 14,003.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.29 : 25,730.50 = 10,147.44 : x
  2. Step 2: Convert to fraction form
    18,645.29/25,730.50 = 10,147.44/x
  3. Step 3: Cross multiply
    18,645.29x = 25,730.50 × 10,147.44
  4. Step 4: Simplify right side
    18,645.29x = 261,098,698.58
  5. Step 5: Solve for x
    x = 261,098,698.58/18,645.29
  6. Step 6: Final answer
    x = 14,003.47

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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.