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Finding the Fourth Proportional to 8,578.09, 11,837.10 and 4,801.20

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Solution

The fourth proportional to 8,578.09, 11,837.10 and 4,801.20 is: 6,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.09 : 11,837.10 = 4,801.20 : x
  2. Step 2: Convert to fraction form
    8,578.09/11,837.10 = 4,801.20/x
  3. Step 3: Cross multiply
    8,578.09x = 11,837.10 × 4,801.20
  4. Step 4: Simplify right side
    8,578.09x = 56,832,284.52
  5. Step 5: Solve for x
    x = 56,832,284.52/8,578.09
  6. Step 6: Final answer
    x = 6,625.28

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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.