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Finding the Fourth Proportional to 13,580.99, 18,706.71 and 9,595.18

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Solution

The fourth proportional to 13,580.99, 18,706.71 and 9,595.18 is: 13,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.99 : 18,706.71 = 9,595.18 : x
  2. Step 2: Convert to fraction form
    13,580.99/18,706.71 = 9,595.18/x
  3. Step 3: Cross multiply
    13,580.99x = 18,706.71 × 9,595.18
  4. Step 4: Simplify right side
    13,580.99x = 179,494,249.66
  5. Step 5: Solve for x
    x = 179,494,249.66/13,580.99
  6. Step 6: Final answer
    x = 13,216.58

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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.