Home / 14,201.78-21,302.81-3,813.53

Finding the Fourth Proportional to 14,201.78, 21,302.81 and 3,813.53

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Solution

The fourth proportional to 14,201.78, 21,302.81 and 3,813.53 is: 5,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,201.78 : 21,302.81 = 3,813.53 : x
  2. Step 2: Convert to fraction form
    14,201.78/21,302.81 = 3,813.53/x
  3. Step 3: Cross multiply
    14,201.78x = 21,302.81 × 3,813.53
  4. Step 4: Simplify right side
    14,201.78x = 81,238,885.95
  5. Step 5: Solve for x
    x = 81,238,885.95/14,201.78
  6. Step 6: Final answer
    x = 5,720.33

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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.