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Finding the Fourth Proportional to 6,439.56, 9,666.18 and 5,703.96

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Solution

The fourth proportional to 6,439.56, 9,666.18 and 5,703.96 is: 8,562.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.56 : 9,666.18 = 5,703.96 : x
  2. Step 2: Convert to fraction form
    6,439.56/9,666.18 = 5,703.96/x
  3. Step 3: Cross multiply
    6,439.56x = 9,666.18 × 5,703.96
  4. Step 4: Simplify right side
    6,439.56x = 55,135,504.07
  5. Step 5: Solve for x
    x = 55,135,504.07/6,439.56
  6. Step 6: Final answer
    x = 8,562.00

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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.