Home / 8,787.15-12,126.47-4,808.43

Finding the Fourth Proportional to 8,787.15, 12,126.47 and 4,808.43

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Solution

The fourth proportional to 8,787.15, 12,126.47 and 4,808.43 is: 6,635.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.15 : 12,126.47 = 4,808.43 : x
  2. Step 2: Convert to fraction form
    8,787.15/12,126.47 = 4,808.43/x
  3. Step 3: Cross multiply
    8,787.15x = 12,126.47 × 4,808.43
  4. Step 4: Simplify right side
    8,787.15x = 58,309,258.10
  5. Step 5: Solve for x
    x = 58,309,258.10/8,787.15
  6. Step 6: Final answer
    x = 6,635.74

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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.