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Finding the Fourth Proportional to 7,955.57, 11,935.31 and 5,620.16

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Solution

The fourth proportional to 7,955.57, 11,935.31 and 5,620.16 is: 8,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.57 : 11,935.31 = 5,620.16 : x
  2. Step 2: Convert to fraction form
    7,955.57/11,935.31 = 5,620.16/x
  3. Step 3: Cross multiply
    7,955.57x = 11,935.31 × 5,620.16
  4. Step 4: Simplify right side
    7,955.57x = 67,078,264.07
  5. Step 5: Solve for x
    x = 67,078,264.07/7,955.57
  6. Step 6: Final answer
    x = 8,431.62

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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.