Home / 18,122.96-27,153.66-8,767.40

Finding the Fourth Proportional to 18,122.96, 27,153.66 and 8,767.40

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Solution

The fourth proportional to 18,122.96, 27,153.66 and 8,767.40 is: 13,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.96 : 27,153.66 = 8,767.40 : x
  2. Step 2: Convert to fraction form
    18,122.96/27,153.66 = 8,767.40/x
  3. Step 3: Cross multiply
    18,122.96x = 27,153.66 × 8,767.40
  4. Step 4: Simplify right side
    18,122.96x = 238,066,998.68
  5. Step 5: Solve for x
    x = 238,066,998.68/18,122.96
  6. Step 6: Final answer
    x = 13,136.21

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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.