Home / 13,299.47-18,353.05-7,331.70

Finding the Fourth Proportional to 13,299.47, 18,353.05 and 7,331.70

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Solution

The fourth proportional to 13,299.47, 18,353.05 and 7,331.70 is: 10,117.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.47 : 18,353.05 = 7,331.70 : x
  2. Step 2: Convert to fraction form
    13,299.47/18,353.05 = 7,331.70/x
  3. Step 3: Cross multiply
    13,299.47x = 18,353.05 × 7,331.70
  4. Step 4: Simplify right side
    13,299.47x = 134,559,003.94
  5. Step 5: Solve for x
    x = 134,559,003.94/13,299.47
  6. Step 6: Final answer
    x = 10,117.62

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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.