Home / 12,114.39-18,168.08-4,717.20

Finding the Fourth Proportional to 12,114.39, 18,168.08 and 4,717.20

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Solution

The fourth proportional to 12,114.39, 18,168.08 and 4,717.20 is: 7,074.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.39 : 18,168.08 = 4,717.20 : x
  2. Step 2: Convert to fraction form
    12,114.39/18,168.08 = 4,717.20/x
  3. Step 3: Cross multiply
    12,114.39x = 18,168.08 × 4,717.20
  4. Step 4: Simplify right side
    12,114.39x = 85,702,443.39
  5. Step 5: Solve for x
    x = 85,702,443.39/12,114.39
  6. Step 6: Final answer
    x = 7,074.43

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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.