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Finding the Fourth Proportional to 13,300.43, 18,355.68 and 7,332.66

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Solution

The fourth proportional to 13,300.43, 18,355.68 and 7,332.66 is: 10,119.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.43 : 18,355.68 = 7,332.66 : x
  2. Step 2: Convert to fraction form
    13,300.43/18,355.68 = 7,332.66/x
  3. Step 3: Cross multiply
    13,300.43x = 18,355.68 × 7,332.66
  4. Step 4: Simplify right side
    13,300.43x = 134,595,960.51
  5. Step 5: Solve for x
    x = 134,595,960.51/13,300.43
  6. Step 6: Final answer
    x = 10,119.67

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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.