Home / 7,617.30-11,431.05-2,686.95

Finding the Fourth Proportional to 7,617.30, 11,431.05 and 2,686.95

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Solution

The fourth proportional to 7,617.30, 11,431.05 and 2,686.95 is: 4,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.30 : 11,431.05 = 2,686.95 : x
  2. Step 2: Convert to fraction form
    7,617.30/11,431.05 = 2,686.95/x
  3. Step 3: Cross multiply
    7,617.30x = 11,431.05 × 2,686.95
  4. Step 4: Simplify right side
    7,617.30x = 30,714,659.80
  5. Step 5: Solve for x
    x = 30,714,659.80/7,617.30
  6. Step 6: Final answer
    x = 4,032.22

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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.