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Finding the Fourth Proportional to 7,928.28, 10,893.69 and 7,416.36

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Solution

The fourth proportional to 7,928.28, 10,893.69 and 7,416.36 is: 10,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.28 : 10,893.69 = 7,416.36 : x
  2. Step 2: Convert to fraction form
    7,928.28/10,893.69 = 7,416.36/x
  3. Step 3: Cross multiply
    7,928.28x = 10,893.69 × 7,416.36
  4. Step 4: Simplify right side
    7,928.28x = 80,791,526.77
  5. Step 5: Solve for x
    x = 80,791,526.77/7,928.28
  6. Step 6: Final answer
    x = 10,190.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.