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Finding the Fourth Proportional to 8,556.04, 11,803.92 and 5,570.78

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Solution

The fourth proportional to 8,556.04, 11,803.92 and 5,570.78 is: 7,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.04 : 11,803.92 = 5,570.78 : x
  2. Step 2: Convert to fraction form
    8,556.04/11,803.92 = 5,570.78/x
  3. Step 3: Cross multiply
    8,556.04x = 11,803.92 × 5,570.78
  4. Step 4: Simplify right side
    8,556.04x = 65,757,041.46
  5. Step 5: Solve for x
    x = 65,757,041.46/8,556.04
  6. Step 6: Final answer
    x = 7,685.45

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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.