Home / 12,172.96-18,238.26-11,882.32

Finding the Fourth Proportional to 12,172.96, 18,238.26 and 11,882.32

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Solution

The fourth proportional to 12,172.96, 18,238.26 and 11,882.32 is: 17,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.96 : 18,238.26 = 11,882.32 : x
  2. Step 2: Convert to fraction form
    12,172.96/18,238.26 = 11,882.32/x
  3. Step 3: Cross multiply
    12,172.96x = 18,238.26 × 11,882.32
  4. Step 4: Simplify right side
    12,172.96x = 216,712,841.56
  5. Step 5: Solve for x
    x = 216,712,841.56/12,172.96
  6. Step 6: Final answer
    x = 17,802.81

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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.