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Finding the Fourth Proportional to 8,361.52, 11,534.72 and 6,485.52

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Solution

The fourth proportional to 8,361.52, 11,534.72 and 6,485.52 is: 8,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.52 : 11,534.72 = 6,485.52 : x
  2. Step 2: Convert to fraction form
    8,361.52/11,534.72 = 6,485.52/x
  3. Step 3: Cross multiply
    8,361.52x = 11,534.72 × 6,485.52
  4. Step 4: Simplify right side
    8,361.52x = 74,808,657.25
  5. Step 5: Solve for x
    x = 74,808,657.25/8,361.52
  6. Step 6: Final answer
    x = 8,946.78

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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.