Home / 8,787.46-12,126.89-4,808.58

Finding the Fourth Proportional to 8,787.46, 12,126.89 and 4,808.58

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Solution

The fourth proportional to 8,787.46, 12,126.89 and 4,808.58 is: 6,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.46 : 12,126.89 = 4,808.58 : x
  2. Step 2: Convert to fraction form
    8,787.46/12,126.89 = 4,808.58/x
  3. Step 3: Cross multiply
    8,787.46x = 12,126.89 × 4,808.58
  4. Step 4: Simplify right side
    8,787.46x = 58,313,120.72
  5. Step 5: Solve for x
    x = 58,313,120.72/8,787.46
  6. Step 6: Final answer
    x = 6,635.95

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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.