Home / 12,688.41-19,032.62-3,923.13

Finding the Fourth Proportional to 12,688.41, 19,032.62 and 3,923.13

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Solution

The fourth proportional to 12,688.41, 19,032.62 and 3,923.13 is: 5,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.41 : 19,032.62 = 3,923.13 : x
  2. Step 2: Convert to fraction form
    12,688.41/19,032.62 = 3,923.13/x
  3. Step 3: Cross multiply
    12,688.41x = 19,032.62 × 3,923.13
  4. Step 4: Simplify right side
    12,688.41x = 74,667,422.88
  5. Step 5: Solve for x
    x = 74,667,422.88/12,688.41
  6. Step 6: Final answer
    x = 5,884.70

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Similar ratio
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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.