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Finding the Fourth Proportional to 9,665.79, 14,479.45 and 6,368.88

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Solution

The fourth proportional to 9,665.79, 14,479.45 and 6,368.88 is: 9,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.79 : 14,479.45 = 6,368.88 : x
  2. Step 2: Convert to fraction form
    9,665.79/14,479.45 = 6,368.88/x
  3. Step 3: Cross multiply
    9,665.79x = 14,479.45 × 6,368.88
  4. Step 4: Simplify right side
    9,665.79x = 92,217,879.52
  5. Step 5: Solve for x
    x = 92,217,879.52/9,665.79
  6. Step 6: Final answer
    x = 9,540.65

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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.