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Finding the Fourth Proportional to 8,056.56, 11,111.64 and 6,656.88

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Solution

The fourth proportional to 8,056.56, 11,111.64 and 6,656.88 is: 9,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,056.56 : 11,111.64 = 6,656.88 : x
  2. Step 2: Convert to fraction form
    8,056.56/11,111.64 = 6,656.88/x
  3. Step 3: Cross multiply
    8,056.56x = 11,111.64 × 6,656.88
  4. Step 4: Simplify right side
    8,056.56x = 73,968,854.08
  5. Step 5: Solve for x
    x = 73,968,854.08/8,056.56
  6. Step 6: Final answer
    x = 9,181.20

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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.