Home / 12,021.52-18,034.80-4,228.24

Finding the Fourth Proportional to 12,021.52, 18,034.80 and 4,228.24

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Solution

The fourth proportional to 12,021.52, 18,034.80 and 4,228.24 is: 6,343.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.52 : 18,034.80 = 4,228.24 : x
  2. Step 2: Convert to fraction form
    12,021.52/18,034.80 = 4,228.24/x
  3. Step 3: Cross multiply
    12,021.52x = 18,034.80 × 4,228.24
  4. Step 4: Simplify right side
    12,021.52x = 76,255,462.75
  5. Step 5: Solve for x
    x = 76,255,462.75/12,021.52
  6. Step 6: Final answer
    x = 6,343.25

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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.