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Finding the Fourth Proportional to 9,644.60, 14,479.32 and 7,771.64

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Solution

The fourth proportional to 9,644.60, 14,479.32 and 7,771.64 is: 11,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,644.60 : 14,479.32 = 7,771.64 : x
  2. Step 2: Convert to fraction form
    9,644.60/14,479.32 = 7,771.64/x
  3. Step 3: Cross multiply
    9,644.60x = 14,479.32 × 7,771.64
  4. Step 4: Simplify right side
    9,644.60x = 112,528,062.48
  5. Step 5: Solve for x
    x = 112,528,062.48/9,644.60
  6. Step 6: Final answer
    x = 11,667.47

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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.