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Finding the Fourth Proportional to 8,477.22, 11,687.31 and 6,959.22

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Solution

The fourth proportional to 8,477.22, 11,687.31 and 6,959.22 is: 9,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.22 : 11,687.31 = 6,959.22 : x
  2. Step 2: Convert to fraction form
    8,477.22/11,687.31 = 6,959.22/x
  3. Step 3: Cross multiply
    8,477.22x = 11,687.31 × 6,959.22
  4. Step 4: Simplify right side
    8,477.22x = 81,334,561.50
  5. Step 5: Solve for x
    x = 81,334,561.50/8,477.22
  6. Step 6: Final answer
    x = 9,594.49

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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.