Home / 12,446.40-18,671.40-3,681.36

Finding the Fourth Proportional to 12,446.40, 18,671.40 and 3,681.36

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Solution

The fourth proportional to 12,446.40, 18,671.40 and 3,681.36 is: 5,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.40 : 18,671.40 = 3,681.36 : x
  2. Step 2: Convert to fraction form
    12,446.40/18,671.40 = 3,681.36/x
  3. Step 3: Cross multiply
    12,446.40x = 18,671.40 × 3,681.36
  4. Step 4: Simplify right side
    12,446.40x = 68,736,145.10
  5. Step 5: Solve for x
    x = 68,736,145.10/12,446.40
  6. Step 6: Final answer
    x = 5,522.57

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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.