Home / 14,787.60-20,408.94-8,499.84

Finding the Fourth Proportional to 14,787.60, 20,408.94 and 8,499.84

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Solution

The fourth proportional to 14,787.60, 20,408.94 and 8,499.84 is: 11,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.60 : 20,408.94 = 8,499.84 : x
  2. Step 2: Convert to fraction form
    14,787.60/20,408.94 = 8,499.84/x
  3. Step 3: Cross multiply
    14,787.60x = 20,408.94 × 8,499.84
  4. Step 4: Simplify right side
    14,787.60x = 173,472,724.57
  5. Step 5: Solve for x
    x = 173,472,724.57/14,787.60
  6. Step 6: Final answer
    x = 11,730.96

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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.