Home / 14,781.39-20,398.41-8,066.99

Finding the Fourth Proportional to 14,781.39, 20,398.41 and 8,066.99

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Solution

The fourth proportional to 14,781.39, 20,398.41 and 8,066.99 is: 11,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.39 : 20,398.41 = 8,066.99 : x
  2. Step 2: Convert to fraction form
    14,781.39/20,398.41 = 8,066.99/x
  3. Step 3: Cross multiply
    14,781.39x = 20,398.41 × 8,066.99
  4. Step 4: Simplify right side
    14,781.39x = 164,553,797.79
  5. Step 5: Solve for x
    x = 164,553,797.79/14,781.39
  6. Step 6: Final answer
    x = 11,132.50

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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.