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Finding the Fourth Proportional to 8,928.01, 13,412.82 and 7,682.47

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Solution

The fourth proportional to 8,928.01, 13,412.82 and 7,682.47 is: 11,541.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.01 : 13,412.82 = 7,682.47 : x
  2. Step 2: Convert to fraction form
    8,928.01/13,412.82 = 7,682.47/x
  3. Step 3: Cross multiply
    8,928.01x = 13,412.82 × 7,682.47
  4. Step 4: Simplify right side
    8,928.01x = 103,043,587.27
  5. Step 5: Solve for x
    x = 103,043,587.27/8,928.01
  6. Step 6: Final answer
    x = 11,541.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.