Home / 12,848.92-17,731.38-8,137.06

Finding the Fourth Proportional to 12,848.92, 17,731.38 and 8,137.06

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Solution

The fourth proportional to 12,848.92, 17,731.38 and 8,137.06 is: 11,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.92 : 17,731.38 = 8,137.06 : x
  2. Step 2: Convert to fraction form
    12,848.92/17,731.38 = 8,137.06/x
  3. Step 3: Cross multiply
    12,848.92x = 17,731.38 × 8,137.06
  4. Step 4: Simplify right side
    12,848.92x = 144,281,302.94
  5. Step 5: Solve for x
    x = 144,281,302.94/12,848.92
  6. Step 6: Final answer
    x = 11,229.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.