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Finding the Fourth Proportional to 7,287.64, 10,955.82 and 5,981.07

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Solution

The fourth proportional to 7,287.64, 10,955.82 and 5,981.07 is: 8,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.64 : 10,955.82 = 5,981.07 : x
  2. Step 2: Convert to fraction form
    7,287.64/10,955.82 = 5,981.07/x
  3. Step 3: Cross multiply
    7,287.64x = 10,955.82 × 5,981.07
  4. Step 4: Simplify right side
    7,287.64x = 65,527,557.24
  5. Step 5: Solve for x
    x = 65,527,557.24/7,287.64
  6. Step 6: Final answer
    x = 8,991.61

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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.