Home / 18,136.72-27,151.62-17,689.60

Finding the Fourth Proportional to 18,136.72, 27,151.62 and 17,689.60

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Solution

The fourth proportional to 18,136.72, 27,151.62 and 17,689.60 is: 26,482.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.72 : 27,151.62 = 17,689.60 : x
  2. Step 2: Convert to fraction form
    18,136.72/27,151.62 = 17,689.60/x
  3. Step 3: Cross multiply
    18,136.72x = 27,151.62 × 17,689.60
  4. Step 4: Simplify right side
    18,136.72x = 480,301,297.15
  5. Step 5: Solve for x
    x = 480,301,297.15/18,136.72
  6. Step 6: Final answer
    x = 26,482.26

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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.