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Finding the Fourth Proportional to 13,453.53, 18,570.90 and 11,557.52

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Solution

The fourth proportional to 13,453.53, 18,570.90 and 11,557.52 is: 15,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.53 : 18,570.90 = 11,557.52 : x
  2. Step 2: Convert to fraction form
    13,453.53/18,570.90 = 11,557.52/x
  3. Step 3: Cross multiply
    13,453.53x = 18,570.90 × 11,557.52
  4. Step 4: Simplify right side
    13,453.53x = 214,633,548.17
  5. Step 5: Solve for x
    x = 214,633,548.17/13,453.53
  6. Step 6: Final answer
    x = 15,953.70

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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.