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Finding the Fourth Proportional to 8,055, 11,116.08 and 4,912.92

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Solution

The fourth proportional to 8,055, 11,116.08 and 4,912.92 is: 6,779.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055 : 11,116.08 = 4,912.92 : x
  2. Step 2: Convert to fraction form
    8,055/11,116.08 = 4,912.92/x
  3. Step 3: Cross multiply
    8,055x = 11,116.08 × 4,912.92
  4. Step 4: Simplify right side
    8,055x = 54,612,411.75
  5. Step 5: Solve for x
    x = 54,612,411.75/8,055
  6. Step 6: Final answer
    x = 6,779.94

Related Problems

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Half scale
Find fourth proportional to 16,110, 22,232.16 and 9,825.84
Double scale
Find fourth proportional to 8,056, 11,117.46 and 4,913.92
Similar ratio
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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.