Home / 12,018.24-18,031.68-7,395.84

Finding the Fourth Proportional to 12,018.24, 18,031.68 and 7,395.84

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Solution

The fourth proportional to 12,018.24, 18,031.68 and 7,395.84 is: 11,096.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.24 : 18,031.68 = 7,395.84 : x
  2. Step 2: Convert to fraction form
    12,018.24/18,031.68 = 7,395.84/x
  3. Step 3: Cross multiply
    12,018.24x = 18,031.68 × 7,395.84
  4. Step 4: Simplify right side
    12,018.24x = 133,359,420.21
  5. Step 5: Solve for x
    x = 133,359,420.21/12,018.24
  6. Step 6: Final answer
    x = 11,096.42

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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.