Home / 16,781.21-25,170.49-9,756.74

Finding the Fourth Proportional to 16,781.21, 25,170.49 and 9,756.74

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Solution

The fourth proportional to 16,781.21, 25,170.49 and 9,756.74 is: 14,634.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.21 : 25,170.49 = 9,756.74 : x
  2. Step 2: Convert to fraction form
    16,781.21/25,170.49 = 9,756.74/x
  3. Step 3: Cross multiply
    16,781.21x = 25,170.49 × 9,756.74
  4. Step 4: Simplify right side
    16,781.21x = 245,581,888.07
  5. Step 5: Solve for x
    x = 245,581,888.07/16,781.21
  6. Step 6: Final answer
    x = 14,634.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.