Home / 14,325.60-21,486.78-3,936

Finding the Fourth Proportional to 14,325.60, 21,486.78 and 3,936

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Solution

The fourth proportional to 14,325.60, 21,486.78 and 3,936 is: 5,903.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,325.60 : 21,486.78 = 3,936 : x
  2. Step 2: Convert to fraction form
    14,325.60/21,486.78 = 3,936/x
  3. Step 3: Cross multiply
    14,325.60x = 21,486.78 × 3,936
  4. Step 4: Simplify right side
    14,325.60x = 84,571,966.08
  5. Step 5: Solve for x
    x = 84,571,966.08/14,325.60
  6. Step 6: Final answer
    x = 5,903.55

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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.