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Finding the Fourth Proportional to 8,566.56, 11,818.31 and 5,208.81

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Solution

The fourth proportional to 8,566.56, 11,818.31 and 5,208.81 is: 7,186.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.56 : 11,818.31 = 5,208.81 : x
  2. Step 2: Convert to fraction form
    8,566.56/11,818.31 = 5,208.81/x
  3. Step 3: Cross multiply
    8,566.56x = 11,818.31 × 5,208.81
  4. Step 4: Simplify right side
    8,566.56x = 61,559,260.95
  5. Step 5: Solve for x
    x = 61,559,260.95/8,566.56
  6. Step 6: Final answer
    x = 7,186.00

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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.