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Finding the Fourth Proportional to 8,983.88, 12,398.51 and 5,208.33

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Solution

The fourth proportional to 8,983.88, 12,398.51 and 5,208.33 is: 7,187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.88 : 12,398.51 = 5,208.33 : x
  2. Step 2: Convert to fraction form
    8,983.88/12,398.51 = 5,208.33/x
  3. Step 3: Cross multiply
    8,983.88x = 12,398.51 × 5,208.33
  4. Step 4: Simplify right side
    8,983.88x = 64,575,531.59
  5. Step 5: Solve for x
    x = 64,575,531.59/8,983.88
  6. Step 6: Final answer
    x = 7,187.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.