Home / 11,801.28-17,701.68-4,781.01

Finding the Fourth Proportional to 11,801.28, 17,701.68 and 4,781.01

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Solution

The fourth proportional to 11,801.28, 17,701.68 and 4,781.01 is: 7,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801.28 : 17,701.68 = 4,781.01 : x
  2. Step 2: Convert to fraction form
    11,801.28/17,701.68 = 4,781.01/x
  3. Step 3: Cross multiply
    11,801.28x = 17,701.68 × 4,781.01
  4. Step 4: Simplify right side
    11,801.28x = 84,631,909.10
  5. Step 5: Solve for x
    x = 84,631,909.10/11,801.28
  6. Step 6: Final answer
    x = 7,171.42

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1.5x scale

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.