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Finding the Fourth Proportional to 13,303.98, 18,359.63 and 7,335.86

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Solution

The fourth proportional to 13,303.98, 18,359.63 and 7,335.86 is: 10,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.98 : 18,359.63 = 7,335.86 : x
  2. Step 2: Convert to fraction form
    13,303.98/18,359.63 = 7,335.86/x
  3. Step 3: Cross multiply
    13,303.98x = 18,359.63 × 7,335.86
  4. Step 4: Simplify right side
    13,303.98x = 134,683,546.85
  5. Step 5: Solve for x
    x = 134,683,546.85/13,303.98
  6. Step 6: Final answer
    x = 10,123.55

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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.