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Finding the Fourth Proportional to 7,321.63, 10,956.93 and 5,989.99

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Solution

The fourth proportional to 7,321.63, 10,956.93 and 5,989.99 is: 8,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.63 : 10,956.93 = 5,989.99 : x
  2. Step 2: Convert to fraction form
    7,321.63/10,956.93 = 5,989.99/x
  3. Step 3: Cross multiply
    7,321.63x = 10,956.93 × 5,989.99
  4. Step 4: Simplify right side
    7,321.63x = 65,631,851.28
  5. Step 5: Solve for x
    x = 65,631,851.28/7,321.63
  6. Step 6: Final answer
    x = 8,964.11

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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.