Home / 12,431.17-18,654.06-4,640.59

Finding the Fourth Proportional to 12,431.17, 18,654.06 and 4,640.59

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Solution

The fourth proportional to 12,431.17, 18,654.06 and 4,640.59 is: 6,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.17 : 18,654.06 = 4,640.59 : x
  2. Step 2: Convert to fraction form
    12,431.17/18,654.06 = 4,640.59/x
  3. Step 3: Cross multiply
    12,431.17x = 18,654.06 × 4,640.59
  4. Step 4: Simplify right side
    12,431.17x = 86,565,844.30
  5. Step 5: Solve for x
    x = 86,565,844.30/12,431.17
  6. Step 6: Final answer
    x = 6,963.61

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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.