Home / 8,627.20-11,905.02-5,091.52

Finding the Fourth Proportional to 8,627.20, 11,905.02 and 5,091.52

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Solution

The fourth proportional to 8,627.20, 11,905.02 and 5,091.52 is: 7,025.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.20 : 11,905.02 = 5,091.52 : x
  2. Step 2: Convert to fraction form
    8,627.20/11,905.02 = 5,091.52/x
  3. Step 3: Cross multiply
    8,627.20x = 11,905.02 × 5,091.52
  4. Step 4: Simplify right side
    8,627.20x = 60,614,647.43
  5. Step 5: Solve for x
    x = 60,614,647.43/8,627.20
  6. Step 6: Final answer
    x = 7,025.99

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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.