Home / 10,787.06-16,165.85-8,152.43

Finding the Fourth Proportional to 10,787.06, 16,165.85 and 8,152.43

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Solution

The fourth proportional to 10,787.06, 16,165.85 and 8,152.43 is: 12,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.06 : 16,165.85 = 8,152.43 : x
  2. Step 2: Convert to fraction form
    10,787.06/16,165.85 = 8,152.43/x
  3. Step 3: Cross multiply
    10,787.06x = 16,165.85 × 8,152.43
  4. Step 4: Simplify right side
    10,787.06x = 131,790,838.92
  5. Step 5: Solve for x
    x = 131,790,838.92/10,787.06
  6. Step 6: Final answer
    x = 12,217.50

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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.