Home / 12,125.16-16,732.55-6,819.97

Finding the Fourth Proportional to 12,125.16, 16,732.55 and 6,819.97

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Solution

The fourth proportional to 12,125.16, 16,732.55 and 6,819.97 is: 9,411.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.16 : 16,732.55 = 6,819.97 : x
  2. Step 2: Convert to fraction form
    12,125.16/16,732.55 = 6,819.97/x
  3. Step 3: Cross multiply
    12,125.16x = 16,732.55 × 6,819.97
  4. Step 4: Simplify right side
    12,125.16x = 114,115,489.02
  5. Step 5: Solve for x
    x = 114,115,489.02/12,125.16
  6. Step 6: Final answer
    x = 9,411.46

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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.