Home / 8,569.65-12,849.70-2,644.86

Finding the Fourth Proportional to 8,569.65, 12,849.70 and 2,644.86

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Solution

The fourth proportional to 8,569.65, 12,849.70 and 2,644.86 is: 3,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,569.65 : 12,849.70 = 2,644.86 : x
  2. Step 2: Convert to fraction form
    8,569.65/12,849.70 = 2,644.86/x
  3. Step 3: Cross multiply
    8,569.65x = 12,849.70 × 2,644.86
  4. Step 4: Simplify right side
    8,569.65x = 33,985,602.74
  5. Step 5: Solve for x
    x = 33,985,602.74/8,569.65
  6. Step 6: Final answer
    x = 3,965.81

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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.