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Finding the Fourth Proportional to 8,556.98, 11,814.19 and 7,659.16

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Solution

The fourth proportional to 8,556.98, 11,814.19 and 7,659.16 is: 10,574.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.98 : 11,814.19 = 7,659.16 : x
  2. Step 2: Convert to fraction form
    8,556.98/11,814.19 = 7,659.16/x
  3. Step 3: Cross multiply
    8,556.98x = 11,814.19 × 7,659.16
  4. Step 4: Simplify right side
    8,556.98x = 90,486,762.72
  5. Step 5: Solve for x
    x = 90,486,762.72/8,556.98
  6. Step 6: Final answer
    x = 10,574.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.