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Finding the Fourth Proportional to 8,979.69, 13,477.84 and 4,540.49

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Solution

The fourth proportional to 8,979.69, 13,477.84 and 4,540.49 is: 6,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.69 : 13,477.84 = 4,540.49 : x
  2. Step 2: Convert to fraction form
    8,979.69/13,477.84 = 4,540.49/x
  3. Step 3: Cross multiply
    8,979.69x = 13,477.84 × 4,540.49
  4. Step 4: Simplify right side
    8,979.69x = 61,195,995.08
  5. Step 5: Solve for x
    x = 61,195,995.08/8,979.69
  6. Step 6: Final answer
    x = 6,814.93

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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.