Home / 8,136.72-12,207.42-2,590.92

Finding the Fourth Proportional to 8,136.72, 12,207.42 and 2,590.92

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Solution

The fourth proportional to 8,136.72, 12,207.42 and 2,590.92 is: 3,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.72 : 12,207.42 = 2,590.92 : x
  2. Step 2: Convert to fraction form
    8,136.72/12,207.42 = 2,590.92/x
  3. Step 3: Cross multiply
    8,136.72x = 12,207.42 × 2,590.92
  4. Step 4: Simplify right side
    8,136.72x = 31,628,448.63
  5. Step 5: Solve for x
    x = 31,628,448.63/8,136.72
  6. Step 6: Final answer
    x = 3,887.13

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1.5x scale

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.