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Finding the Fourth Proportional to 8,485.54, 11,714.04 and 5,657.62

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Solution

The fourth proportional to 8,485.54, 11,714.04 and 5,657.62 is: 7,810.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.54 : 11,714.04 = 5,657.62 : x
  2. Step 2: Convert to fraction form
    8,485.54/11,714.04 = 5,657.62/x
  3. Step 3: Cross multiply
    8,485.54x = 11,714.04 × 5,657.62
  4. Step 4: Simplify right side
    8,485.54x = 66,273,586.98
  5. Step 5: Solve for x
    x = 66,273,586.98/8,485.54
  6. Step 6: Final answer
    x = 7,810.18

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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.