Home / 18,018.67-27,057.18-11,136.91

Finding the Fourth Proportional to 18,018.67, 27,057.18 and 11,136.91

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Solution

The fourth proportional to 18,018.67, 27,057.18 and 11,136.91 is: 16,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.67 : 27,057.18 = 11,136.91 : x
  2. Step 2: Convert to fraction form
    18,018.67/27,057.18 = 11,136.91/x
  3. Step 3: Cross multiply
    18,018.67x = 27,057.18 × 11,136.91
  4. Step 4: Simplify right side
    18,018.67x = 301,333,378.51
  5. Step 5: Solve for x
    x = 301,333,378.51/18,018.67
  6. Step 6: Final answer
    x = 16,723.40

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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.