Home / 7,885.53-11,826.77-2,619.72

Finding the Fourth Proportional to 7,885.53, 11,826.77 and 2,619.72

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Solution

The fourth proportional to 7,885.53, 11,826.77 and 2,619.72 is: 3,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.53 : 11,826.77 = 2,619.72 : x
  2. Step 2: Convert to fraction form
    7,885.53/11,826.77 = 2,619.72/x
  3. Step 3: Cross multiply
    7,885.53x = 11,826.77 × 2,619.72
  4. Step 4: Simplify right side
    7,885.53x = 30,982,825.90
  5. Step 5: Solve for x
    x = 30,982,825.90/7,885.53
  6. Step 6: Final answer
    x = 3,929.07

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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.