Home / 13,732.46-20,580.65-7,812.06

Finding the Fourth Proportional to 13,732.46, 20,580.65 and 7,812.06

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Solution

The fourth proportional to 13,732.46, 20,580.65 and 7,812.06 is: 11,707.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.46 : 20,580.65 = 7,812.06 : x
  2. Step 2: Convert to fraction form
    13,732.46/20,580.65 = 7,812.06/x
  3. Step 3: Cross multiply
    13,732.46x = 20,580.65 × 7,812.06
  4. Step 4: Simplify right side
    13,732.46x = 160,777,272.64
  5. Step 5: Solve for x
    x = 160,777,272.64/13,732.46
  6. Step 6: Final answer
    x = 11,707.83

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1.5x scale

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.