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Finding the Fourth Proportional to 8,365.88, 11,556.93 and 6,685.08

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Solution

The fourth proportional to 8,365.88, 11,556.93 and 6,685.08 is: 9,235.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.88 : 11,556.93 = 6,685.08 : x
  2. Step 2: Convert to fraction form
    8,365.88/11,556.93 = 6,685.08/x
  3. Step 3: Cross multiply
    8,365.88x = 11,556.93 × 6,685.08
  4. Step 4: Simplify right side
    8,365.88x = 77,259,010.74
  5. Step 5: Solve for x
    x = 77,259,010.74/8,365.88
  6. Step 6: Final answer
    x = 9,235.01

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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.