Home / 12,013.64-18,028.92-4,223.08

Finding the Fourth Proportional to 12,013.64, 18,028.92 and 4,223.08

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Solution

The fourth proportional to 12,013.64, 18,028.92 and 4,223.08 is: 6,337.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.64 : 18,028.92 = 4,223.08 : x
  2. Step 2: Convert to fraction form
    12,013.64/18,028.92 = 4,223.08/x
  3. Step 3: Cross multiply
    12,013.64x = 18,028.92 × 4,223.08
  4. Step 4: Simplify right side
    12,013.64x = 76,137,571.47
  5. Step 5: Solve for x
    x = 76,137,571.47/12,013.64
  6. Step 6: Final answer
    x = 6,337.59

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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.