Home / 9,121.37-13,682.20-2,547.59

Finding the Fourth Proportional to 9,121.37, 13,682.20 and 2,547.59

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Solution

The fourth proportional to 9,121.37, 13,682.20 and 2,547.59 is: 3,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.37 : 13,682.20 = 2,547.59 : x
  2. Step 2: Convert to fraction form
    9,121.37/13,682.20 = 2,547.59/x
  3. Step 3: Cross multiply
    9,121.37x = 13,682.20 × 2,547.59
  4. Step 4: Simplify right side
    9,121.37x = 34,856,635.90
  5. Step 5: Solve for x
    x = 34,856,635.90/9,121.37
  6. Step 6: Final answer
    x = 3,821.43

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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.