Home / 7,725.13-11,587.70-3,108.13

Finding the Fourth Proportional to 7,725.13, 11,587.70 and 3,108.13

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Solution

The fourth proportional to 7,725.13, 11,587.70 and 3,108.13 is: 4,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.13 : 11,587.70 = 3,108.13 : x
  2. Step 2: Convert to fraction form
    7,725.13/11,587.70 = 3,108.13/x
  3. Step 3: Cross multiply
    7,725.13x = 11,587.70 × 3,108.13
  4. Step 4: Simplify right side
    7,725.13x = 36,016,078.00
  5. Step 5: Solve for x
    x = 36,016,078.00/7,725.13
  6. Step 6: Final answer
    x = 4,662.20

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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.