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Finding the Fourth Proportional to 8,539.52, 11,784.78 and 4,813.52

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Solution

The fourth proportional to 8,539.52, 11,784.78 and 4,813.52 is: 6,642.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.52 : 11,784.78 = 4,813.52 : x
  2. Step 2: Convert to fraction form
    8,539.52/11,784.78 = 4,813.52/x
  3. Step 3: Cross multiply
    8,539.52x = 11,784.78 × 4,813.52
  4. Step 4: Simplify right side
    8,539.52x = 56,726,274.23
  5. Step 5: Solve for x
    x = 56,726,274.23/8,539.52
  6. Step 6: Final answer
    x = 6,642.79

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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.