Home / 13,326.40-19,989.60-4,092.48

Finding the Fourth Proportional to 13,326.40, 19,989.60 and 4,092.48

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Solution

The fourth proportional to 13,326.40, 19,989.60 and 4,092.48 is: 6,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.40 : 19,989.60 = 4,092.48 : x
  2. Step 2: Convert to fraction form
    13,326.40/19,989.60 = 4,092.48/x
  3. Step 3: Cross multiply
    13,326.40x = 19,989.60 × 4,092.48
  4. Step 4: Simplify right side
    13,326.40x = 81,807,038.21
  5. Step 5: Solve for x
    x = 81,807,038.21/13,326.40
  6. Step 6: Final answer
    x = 6,138.72

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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.