Home / 12,632.14-18,953.68-6,781.92

Finding the Fourth Proportional to 12,632.14, 18,953.68 and 6,781.92

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Solution

The fourth proportional to 12,632.14, 18,953.68 and 6,781.92 is: 10,175.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.14 : 18,953.68 = 6,781.92 : x
  2. Step 2: Convert to fraction form
    12,632.14/18,953.68 = 6,781.92/x
  3. Step 3: Cross multiply
    12,632.14x = 18,953.68 × 6,781.92
  4. Step 4: Simplify right side
    12,632.14x = 128,542,341.47
  5. Step 5: Solve for x
    x = 128,542,341.47/12,632.14
  6. Step 6: Final answer
    x = 10,175.82

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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.