Home / 13,781.93-18,998.69-10,753.64

Finding the Fourth Proportional to 13,781.93, 18,998.69 and 10,753.64

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Solution

The fourth proportional to 13,781.93, 18,998.69 and 10,753.64 is: 14,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.93 : 18,998.69 = 10,753.64 : x
  2. Step 2: Convert to fraction form
    13,781.93/18,998.69 = 10,753.64/x
  3. Step 3: Cross multiply
    13,781.93x = 18,998.69 × 10,753.64
  4. Step 4: Simplify right side
    13,781.93x = 204,304,995.22
  5. Step 5: Solve for x
    x = 204,304,995.22/13,781.93
  6. Step 6: Final answer
    x = 14,824.13

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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.