Home / 8,557.72-11,809.02-4,831

Finding the Fourth Proportional to 8,557.72, 11,809.02 and 4,831

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Solution

The fourth proportional to 8,557.72, 11,809.02 and 4,831 is: 6,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.72 : 11,809.02 = 4,831 : x
  2. Step 2: Convert to fraction form
    8,557.72/11,809.02 = 4,831/x
  3. Step 3: Cross multiply
    8,557.72x = 11,809.02 × 4,831
  4. Step 4: Simplify right side
    8,557.72x = 57,049,375.62
  5. Step 5: Solve for x
    x = 57,049,375.62/8,557.72
  6. Step 6: Final answer
    x = 6,666.42

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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.