Home / 9,167.14-12,650.48-5,390.72

Finding the Fourth Proportional to 9,167.14, 12,650.48 and 5,390.72

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Solution

The fourth proportional to 9,167.14, 12,650.48 and 5,390.72 is: 7,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.14 : 12,650.48 = 5,390.72 : x
  2. Step 2: Convert to fraction form
    9,167.14/12,650.48 = 5,390.72/x
  3. Step 3: Cross multiply
    9,167.14x = 12,650.48 × 5,390.72
  4. Step 4: Simplify right side
    9,167.14x = 68,195,172.99
  5. Step 5: Solve for x
    x = 68,195,172.99/9,167.14
  6. Step 6: Final answer
    x = 7,439.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.