Home / 8,787.35-12,126.54-4,808.47

Finding the Fourth Proportional to 8,787.35, 12,126.54 and 4,808.47

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Solution

The fourth proportional to 8,787.35, 12,126.54 and 4,808.47 is: 6,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.35 : 12,126.54 = 4,808.47 : x
  2. Step 2: Convert to fraction form
    8,787.35/12,126.54 = 4,808.47/x
  3. Step 3: Cross multiply
    8,787.35x = 12,126.54 × 4,808.47
  4. Step 4: Simplify right side
    8,787.35x = 58,310,103.79
  5. Step 5: Solve for x
    x = 58,310,103.79/8,787.35
  6. Step 6: Final answer
    x = 6,635.69

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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.