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Finding the Fourth Proportional to 12,612.59, 18,830.04 and 9,635.33

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Solution

The fourth proportional to 12,612.59, 18,830.04 and 9,635.33 is: 14,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.59 : 18,830.04 = 9,635.33 : x
  2. Step 2: Convert to fraction form
    12,612.59/18,830.04 = 9,635.33/x
  3. Step 3: Cross multiply
    12,612.59x = 18,830.04 × 9,635.33
  4. Step 4: Simplify right side
    12,612.59x = 181,433,649.31
  5. Step 5: Solve for x
    x = 181,433,649.31/12,612.59
  6. Step 6: Final answer
    x = 14,385.12

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.