Home / 14,781.84-20,398.77-8,067.51

Finding the Fourth Proportional to 14,781.84, 20,398.77 and 8,067.51

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Solution

The fourth proportional to 14,781.84, 20,398.77 and 8,067.51 is: 11,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.84 : 20,398.77 = 8,067.51 : x
  2. Step 2: Convert to fraction form
    14,781.84/20,398.77 = 8,067.51/x
  3. Step 3: Cross multiply
    14,781.84x = 20,398.77 × 8,067.51
  4. Step 4: Simplify right side
    14,781.84x = 164,567,280.96
  5. Step 5: Solve for x
    x = 164,567,280.96/14,781.84
  6. Step 6: Final answer
    x = 11,133.07

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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.