Home / 8,469.04-12,687.16-4,089.57

Finding the Fourth Proportional to 8,469.04, 12,687.16 and 4,089.57

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Solution

The fourth proportional to 8,469.04, 12,687.16 and 4,089.57 is: 6,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.04 : 12,687.16 = 4,089.57 : x
  2. Step 2: Convert to fraction form
    8,469.04/12,687.16 = 4,089.57/x
  3. Step 3: Cross multiply
    8,469.04x = 12,687.16 × 4,089.57
  4. Step 4: Simplify right side
    8,469.04x = 51,885,038.65
  5. Step 5: Solve for x
    x = 51,885,038.65/8,469.04
  6. Step 6: Final answer
    x = 6,126.44

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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.