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Finding the Fourth Proportional to 6,664.87, 9,985.56 and 5,940.91

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Solution

The fourth proportional to 6,664.87, 9,985.56 and 5,940.91 is: 8,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.87 : 9,985.56 = 5,940.91 : x
  2. Step 2: Convert to fraction form
    6,664.87/9,985.56 = 5,940.91/x
  3. Step 3: Cross multiply
    6,664.87x = 9,985.56 × 5,940.91
  4. Step 4: Simplify right side
    6,664.87x = 59,323,313.26
  5. Step 5: Solve for x
    x = 59,323,313.26/6,664.87
  6. Step 6: Final answer
    x = 8,900.90

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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.