Home / 13,787.73-20,655.68-6,845.49

Finding the Fourth Proportional to 13,787.73, 20,655.68 and 6,845.49

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Solution

The fourth proportional to 13,787.73, 20,655.68 and 6,845.49 is: 10,255.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.73 : 20,655.68 = 6,845.49 : x
  2. Step 2: Convert to fraction form
    13,787.73/20,655.68 = 6,845.49/x
  3. Step 3: Cross multiply
    13,787.73x = 20,655.68 × 6,845.49
  4. Step 4: Simplify right side
    13,787.73x = 141,398,216.66
  5. Step 5: Solve for x
    x = 141,398,216.66/13,787.73
  6. Step 6: Final answer
    x = 10,255.37

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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.