Home / 12,195.40-18,292.38-7,516.30

Finding the Fourth Proportional to 12,195.40, 18,292.38 and 7,516.30

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Solution

The fourth proportional to 12,195.40, 18,292.38 and 7,516.30 is: 11,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.40 : 18,292.38 = 7,516.30 : x
  2. Step 2: Convert to fraction form
    12,195.40/18,292.38 = 7,516.30/x
  3. Step 3: Cross multiply
    12,195.40x = 18,292.38 × 7,516.30
  4. Step 4: Simplify right side
    12,195.40x = 137,491,015.79
  5. Step 5: Solve for x
    x = 137,491,015.79/12,195.40
  6. Step 6: Final answer
    x = 11,274.01

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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.