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Finding the Fourth Proportional to 9,665.64, 13,323.06 and 6,516.36

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Solution

The fourth proportional to 9,665.64, 13,323.06 and 6,516.36 is: 8,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.64 : 13,323.06 = 6,516.36 : x
  2. Step 2: Convert to fraction form
    9,665.64/13,323.06 = 6,516.36/x
  3. Step 3: Cross multiply
    9,665.64x = 13,323.06 × 6,516.36
  4. Step 4: Simplify right side
    9,665.64x = 86,817,855.26
  5. Step 5: Solve for x
    x = 86,817,855.26/9,665.64
  6. Step 6: Final answer
    x = 8,982.11

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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.