Home / 7,899.61-11,856.24-3,222.20

Finding the Fourth Proportional to 7,899.61, 11,856.24 and 3,222.20

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Solution

The fourth proportional to 7,899.61, 11,856.24 and 3,222.20 is: 4,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.61 : 11,856.24 = 3,222.20 : x
  2. Step 2: Convert to fraction form
    7,899.61/11,856.24 = 3,222.20/x
  3. Step 3: Cross multiply
    7,899.61x = 11,856.24 × 3,222.20
  4. Step 4: Simplify right side
    7,899.61x = 38,203,138.83
  5. Step 5: Solve for x
    x = 38,203,138.83/7,899.61
  6. Step 6: Final answer
    x = 4,836.08

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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.