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Finding the Fourth Proportional to 13,133.45, 19,700.46 and 7,327.01

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Solution

The fourth proportional to 13,133.45, 19,700.46 and 7,327.01 is: 10,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.45 : 19,700.46 = 7,327.01 : x
  2. Step 2: Convert to fraction form
    13,133.45/19,700.46 = 7,327.01/x
  3. Step 3: Cross multiply
    13,133.45x = 19,700.46 × 7,327.01
  4. Step 4: Simplify right side
    13,133.45x = 144,345,368.92
  5. Step 5: Solve for x
    x = 144,345,368.92/13,133.45
  6. Step 6: Final answer
    x = 10,990.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.