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Finding the Fourth Proportional to 13,550.96, 18,700.66 and 7,582.58

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Solution

The fourth proportional to 13,550.96, 18,700.66 and 7,582.58 is: 10,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.96 : 18,700.66 = 7,582.58 : x
  2. Step 2: Convert to fraction form
    13,550.96/18,700.66 = 7,582.58/x
  3. Step 3: Cross multiply
    13,550.96x = 18,700.66 × 7,582.58
  4. Step 4: Simplify right side
    13,550.96x = 141,799,250.50
  5. Step 5: Solve for x
    x = 141,799,250.50/13,550.96
  6. Step 6: Final answer
    x = 10,464.15

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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.