Home / 12,183.68-18,272.63-5,254.40

Finding the Fourth Proportional to 12,183.68, 18,272.63 and 5,254.40

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Solution

The fourth proportional to 12,183.68, 18,272.63 and 5,254.40 is: 7,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.68 : 18,272.63 = 5,254.40 : x
  2. Step 2: Convert to fraction form
    12,183.68/18,272.63 = 5,254.40/x
  3. Step 3: Cross multiply
    12,183.68x = 18,272.63 × 5,254.40
  4. Step 4: Simplify right side
    12,183.68x = 96,011,589.44
  5. Step 5: Solve for x
    x = 96,011,589.44/12,183.68
  6. Step 6: Final answer
    x = 7,880.35

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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.