Home / 13,133.46-19,707.69-4,812.36

Finding the Fourth Proportional to 13,133.46, 19,707.69 and 4,812.36

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Solution

The fourth proportional to 13,133.46, 19,707.69 and 4,812.36 is: 7,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.46 : 19,707.69 = 4,812.36 : x
  2. Step 2: Convert to fraction form
    13,133.46/19,707.69 = 4,812.36/x
  3. Step 3: Cross multiply
    13,133.46x = 19,707.69 × 4,812.36
  4. Step 4: Simplify right side
    13,133.46x = 94,840,499.05
  5. Step 5: Solve for x
    x = 94,840,499.05/13,133.46
  6. Step 6: Final answer
    x = 7,221.29

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Why These Related Problems?

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