Home / 18,142.27-27,223.90-7,611.35

Finding the Fourth Proportional to 18,142.27, 27,223.90 and 7,611.35

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Solution

The fourth proportional to 18,142.27, 27,223.90 and 7,611.35 is: 11,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.27 : 27,223.90 = 7,611.35 : x
  2. Step 2: Convert to fraction form
    18,142.27/27,223.90 = 7,611.35/x
  3. Step 3: Cross multiply
    18,142.27x = 27,223.90 × 7,611.35
  4. Step 4: Simplify right side
    18,142.27x = 207,210,476.12
  5. Step 5: Solve for x
    x = 207,210,476.12/18,142.27
  6. Step 6: Final answer
    x = 11,421.42

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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.