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Finding the Fourth Proportional to 7,484.28, 11,251.02 and 6,942.99

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Solution

The fourth proportional to 7,484.28, 11,251.02 and 6,942.99 is: 10,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.28 : 11,251.02 = 6,942.99 : x
  2. Step 2: Convert to fraction form
    7,484.28/11,251.02 = 6,942.99/x
  3. Step 3: Cross multiply
    7,484.28x = 11,251.02 × 6,942.99
  4. Step 4: Simplify right side
    7,484.28x = 78,115,719.35
  5. Step 5: Solve for x
    x = 78,115,719.35/7,484.28
  6. Step 6: Final answer
    x = 10,437.31

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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.