Home / 11,787.18-16,264.96-6,481.68

Finding the Fourth Proportional to 11,787.18, 16,264.96 and 6,481.68

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Solution

The fourth proportional to 11,787.18, 16,264.96 and 6,481.68 is: 8,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.18 : 16,264.96 = 6,481.68 : x
  2. Step 2: Convert to fraction form
    11,787.18/16,264.96 = 6,481.68/x
  3. Step 3: Cross multiply
    11,787.18x = 16,264.96 × 6,481.68
  4. Step 4: Simplify right side
    11,787.18x = 105,424,265.93
  5. Step 5: Solve for x
    x = 105,424,265.93/11,787.18
  6. Step 6: Final answer
    x = 8,943.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.