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Finding the Fourth Proportional to 11,493.37, 15,860.86 and 6,457.59

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Solution

The fourth proportional to 11,493.37, 15,860.86 and 6,457.59 is: 8,911.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.37 : 15,860.86 = 6,457.59 : x
  2. Step 2: Convert to fraction form
    11,493.37/15,860.86 = 6,457.59/x
  3. Step 3: Cross multiply
    11,493.37x = 15,860.86 × 6,457.59
  4. Step 4: Simplify right side
    11,493.37x = 102,422,914.78
  5. Step 5: Solve for x
    x = 102,422,914.78/11,493.37
  6. Step 6: Final answer
    x = 8,911.48

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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.