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Finding the Fourth Proportional to 7,951.77, 10,969.02 and 7,388.62

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Solution

The fourth proportional to 7,951.77, 10,969.02 and 7,388.62 is: 10,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.77 : 10,969.02 = 7,388.62 : x
  2. Step 2: Convert to fraction form
    7,951.77/10,969.02 = 7,388.62/x
  3. Step 3: Cross multiply
    7,951.77x = 10,969.02 × 7,388.62
  4. Step 4: Simplify right side
    7,951.77x = 81,045,893.13
  5. Step 5: Solve for x
    x = 81,045,893.13/7,951.77
  6. Step 6: Final answer
    x = 10,192.18

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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.