Home / 14,781.21-20,398.13-8,493.59

Finding the Fourth Proportional to 14,781.21, 20,398.13 and 8,493.59

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Solution

The fourth proportional to 14,781.21, 20,398.13 and 8,493.59 is: 11,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.21 : 20,398.13 = 8,493.59 : x
  2. Step 2: Convert to fraction form
    14,781.21/20,398.13 = 8,493.59/x
  3. Step 3: Cross multiply
    14,781.21x = 20,398.13 × 8,493.59
  4. Step 4: Simplify right side
    14,781.21x = 173,253,208.53
  5. Step 5: Solve for x
    x = 173,253,208.53/14,781.21
  6. Step 6: Final answer
    x = 11,721.18

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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.