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Finding the Fourth Proportional to 8,549.51, 11,789.03 and 5,559.80

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Solution

The fourth proportional to 8,549.51, 11,789.03 and 5,559.80 is: 7,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.51 : 11,789.03 = 5,559.80 : x
  2. Step 2: Convert to fraction form
    8,549.51/11,789.03 = 5,559.80/x
  3. Step 3: Cross multiply
    8,549.51x = 11,789.03 × 5,559.80
  4. Step 4: Simplify right side
    8,549.51x = 65,544,621.20
  5. Step 5: Solve for x
    x = 65,544,621.20/8,549.51
  6. Step 6: Final answer
    x = 7,666.48

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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.