Home / 18,233.76-27,339.68-7,127.21

Finding the Fourth Proportional to 18,233.76, 27,339.68 and 7,127.21

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Solution

The fourth proportional to 18,233.76, 27,339.68 and 7,127.21 is: 10,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,233.76 : 27,339.68 = 7,127.21 : x
  2. Step 2: Convert to fraction form
    18,233.76/27,339.68 = 7,127.21/x
  3. Step 3: Cross multiply
    18,233.76x = 27,339.68 × 7,127.21
  4. Step 4: Simplify right side
    18,233.76x = 194,855,468.36
  5. Step 5: Solve for x
    x = 194,855,468.36/18,233.76
  6. Step 6: Final answer
    x = 10,686.52

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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.