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Finding the Fourth Proportional to 8,609.52, 12,838.52 and 7,927.91

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Solution

The fourth proportional to 8,609.52, 12,838.52 and 7,927.91 is: 11,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.52 : 12,838.52 = 7,927.91 : x
  2. Step 2: Convert to fraction form
    8,609.52/12,838.52 = 7,927.91/x
  3. Step 3: Cross multiply
    8,609.52x = 12,838.52 × 7,927.91
  4. Step 4: Simplify right side
    8,609.52x = 101,782,527.26
  5. Step 5: Solve for x
    x = 101,782,527.26/8,609.52
  6. Step 6: Final answer
    x = 11,822.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.