Home / 12,114.23-18,179.63-4,718.72

Finding the Fourth Proportional to 12,114.23, 18,179.63 and 4,718.72

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Solution

The fourth proportional to 12,114.23, 18,179.63 and 4,718.72 is: 7,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.23 : 18,179.63 = 4,718.72 : x
  2. Step 2: Convert to fraction form
    12,114.23/18,179.63 = 4,718.72/x
  3. Step 3: Cross multiply
    12,114.23x = 18,179.63 × 4,718.72
  4. Step 4: Simplify right side
    12,114.23x = 85,784,469.18
  5. Step 5: Solve for x
    x = 85,784,469.18/12,114.23
  6. Step 6: Final answer
    x = 7,081.30

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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.