Home / 12,474.39-18,733.83-11,972.64

Finding the Fourth Proportional to 12,474.39, 18,733.83 and 11,972.64

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Solution

The fourth proportional to 12,474.39, 18,733.83 and 11,972.64 is: 17,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.39 : 18,733.83 = 11,972.64 : x
  2. Step 2: Convert to fraction form
    12,474.39/18,733.83 = 11,972.64/x
  3. Step 3: Cross multiply
    12,474.39x = 18,733.83 × 11,972.64
  4. Step 4: Simplify right side
    12,474.39x = 224,293,402.41
  5. Step 5: Solve for x
    x = 224,293,402.41/12,474.39
  6. Step 6: Final answer
    x = 17,980.31

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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.