Home / 7,923.66-11,886.12-2,658.72

Finding the Fourth Proportional to 7,923.66, 11,886.12 and 2,658.72

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Solution

The fourth proportional to 7,923.66, 11,886.12 and 2,658.72 is: 3,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.66 : 11,886.12 = 2,658.72 : x
  2. Step 2: Convert to fraction form
    7,923.66/11,886.12 = 2,658.72/x
  3. Step 3: Cross multiply
    7,923.66x = 11,886.12 × 2,658.72
  4. Step 4: Simplify right side
    7,923.66x = 31,601,864.97
  5. Step 5: Solve for x
    x = 31,601,864.97/7,923.66
  6. Step 6: Final answer
    x = 3,988.29

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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.