Home / 8,541.48-11,787.78-4,815.72

Finding the Fourth Proportional to 8,541.48, 11,787.78 and 4,815.72

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Solution

The fourth proportional to 8,541.48, 11,787.78 and 4,815.72 is: 6,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.48 : 11,787.78 = 4,815.72 : x
  2. Step 2: Convert to fraction form
    8,541.48/11,787.78 = 4,815.72/x
  3. Step 3: Cross multiply
    8,541.48x = 11,787.78 × 4,815.72
  4. Step 4: Simplify right side
    8,541.48x = 56,766,647.90
  5. Step 5: Solve for x
    x = 56,766,647.90/8,541.48
  6. Step 6: Final answer
    x = 6,646.00

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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.