Home / 12,022.30-18,031.76-4,124.68

Finding the Fourth Proportional to 12,022.30, 18,031.76 and 4,124.68

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Solution

The fourth proportional to 12,022.30, 18,031.76 and 4,124.68 is: 6,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,022.30 : 18,031.76 = 4,124.68 : x
  2. Step 2: Convert to fraction form
    12,022.30/18,031.76 = 4,124.68/x
  3. Step 3: Cross multiply
    12,022.30x = 18,031.76 × 4,124.68
  4. Step 4: Simplify right side
    12,022.30x = 74,375,239.84
  5. Step 5: Solve for x
    x = 74,375,239.84/12,022.30
  6. Step 6: Final answer
    x = 6,186.44

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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.