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Finding the Fourth Proportional to 11,493.41, 15,867.55 and 7,521.45

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Solution

The fourth proportional to 11,493.41, 15,867.55 and 7,521.45 is: 10,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.41 : 15,867.55 = 7,521.45 : x
  2. Step 2: Convert to fraction form
    11,493.41/15,867.55 = 7,521.45/x
  3. Step 3: Cross multiply
    11,493.41x = 15,867.55 × 7,521.45
  4. Step 4: Simplify right side
    11,493.41x = 119,346,983.95
  5. Step 5: Solve for x
    x = 119,346,983.95/11,493.41
  6. Step 6: Final answer
    x = 10,383.95

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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.