Home / 12,588.41-18,881.81-3,823.40

Finding the Fourth Proportional to 12,588.41, 18,881.81 and 3,823.40

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Solution

The fourth proportional to 12,588.41, 18,881.81 and 3,823.40 is: 5,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.41 : 18,881.81 = 3,823.40 : x
  2. Step 2: Convert to fraction form
    12,588.41/18,881.81 = 3,823.40/x
  3. Step 3: Cross multiply
    12,588.41x = 18,881.81 × 3,823.40
  4. Step 4: Simplify right side
    12,588.41x = 72,192,754.78
  5. Step 5: Solve for x
    x = 72,192,754.78/12,588.41
  6. Step 6: Final answer
    x = 5,734.86

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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.