Home / 12,164.15-18,237.74-6,229.51

Finding the Fourth Proportional to 12,164.15, 18,237.74 and 6,229.51

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Solution

The fourth proportional to 12,164.15, 18,237.74 and 6,229.51 is: 9,339.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.15 : 18,237.74 = 6,229.51 : x
  2. Step 2: Convert to fraction form
    12,164.15/18,237.74 = 6,229.51/x
  3. Step 3: Cross multiply
    12,164.15x = 18,237.74 × 6,229.51
  4. Step 4: Simplify right side
    12,164.15x = 113,612,061.37
  5. Step 5: Solve for x
    x = 113,612,061.37/12,164.15
  6. Step 6: Final answer
    x = 9,339.91

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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.