Home / 12,836.72-19,255.80-3,602

Finding the Fourth Proportional to 12,836.72, 19,255.80 and 3,602

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Solution

The fourth proportional to 12,836.72, 19,255.80 and 3,602 is: 5,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.72 : 19,255.80 = 3,602 : x
  2. Step 2: Convert to fraction form
    12,836.72/19,255.80 = 3,602/x
  3. Step 3: Cross multiply
    12,836.72x = 19,255.80 × 3,602
  4. Step 4: Simplify right side
    12,836.72x = 69,359,391.60
  5. Step 5: Solve for x
    x = 69,359,391.60/12,836.72
  6. Step 6: Final answer
    x = 5,403.20

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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.