Home / 8,456.87-12,682.73-2,907.02

Finding the Fourth Proportional to 8,456.87, 12,682.73 and 2,907.02

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Solution

The fourth proportional to 8,456.87, 12,682.73 and 2,907.02 is: 4,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.87 : 12,682.73 = 2,907.02 : x
  2. Step 2: Convert to fraction form
    8,456.87/12,682.73 = 2,907.02/x
  3. Step 3: Cross multiply
    8,456.87x = 12,682.73 × 2,907.02
  4. Step 4: Simplify right side
    8,456.87x = 36,868,871.82
  5. Step 5: Solve for x
    x = 36,868,871.82/8,456.87
  6. Step 6: Final answer
    x = 4,359.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.