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Finding the Fourth Proportional to 13,303.74, 18,359.13 and 7,335.51

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Solution

The fourth proportional to 13,303.74, 18,359.13 and 7,335.51 is: 10,122.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.74 : 18,359.13 = 7,335.51 : x
  2. Step 2: Convert to fraction form
    13,303.74/18,359.13 = 7,335.51/x
  3. Step 3: Cross multiply
    13,303.74x = 18,359.13 × 7,335.51
  4. Step 4: Simplify right side
    13,303.74x = 134,673,540.37
  5. Step 5: Solve for x
    x = 134,673,540.37/13,303.74
  6. Step 6: Final answer
    x = 10,122.98

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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.