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Finding the Fourth Proportional to 10,665.46, 14,720.97 and 6,477.22

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Solution

The fourth proportional to 10,665.46, 14,720.97 and 6,477.22 is: 8,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.46 : 14,720.97 = 6,477.22 : x
  2. Step 2: Convert to fraction form
    10,665.46/14,720.97 = 6,477.22/x
  3. Step 3: Cross multiply
    10,665.46x = 14,720.97 × 6,477.22
  4. Step 4: Simplify right side
    10,665.46x = 95,350,961.30
  5. Step 5: Solve for x
    x = 95,350,961.30/10,665.46
  6. Step 6: Final answer
    x = 8,940.16

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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.