Home / 12,627.20-18,911.25-6,371.99

Finding the Fourth Proportional to 12,627.20, 18,911.25 and 6,371.99

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Solution

The fourth proportional to 12,627.20, 18,911.25 and 6,371.99 is: 9,543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.20 : 18,911.25 = 6,371.99 : x
  2. Step 2: Convert to fraction form
    12,627.20/18,911.25 = 6,371.99/x
  3. Step 3: Cross multiply
    12,627.20x = 18,911.25 × 6,371.99
  4. Step 4: Simplify right side
    12,627.20x = 120,502,232.88
  5. Step 5: Solve for x
    x = 120,502,232.88/12,627.20
  6. Step 6: Final answer
    x = 9,543.07

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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.