Home / 18,127.76-27,202.59-6,440.09

Finding the Fourth Proportional to 18,127.76, 27,202.59 and 6,440.09

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Solution

The fourth proportional to 18,127.76, 27,202.59 and 6,440.09 is: 9,664.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.76 : 27,202.59 = 6,440.09 : x
  2. Step 2: Convert to fraction form
    18,127.76/27,202.59 = 6,440.09/x
  3. Step 3: Cross multiply
    18,127.76x = 27,202.59 × 6,440.09
  4. Step 4: Simplify right side
    18,127.76x = 175,186,991.82
  5. Step 5: Solve for x
    x = 175,186,991.82/18,127.76
  6. Step 6: Final answer
    x = 9,664.02

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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.