Home / 8,742.88-13,112.70-2,501.56

Finding the Fourth Proportional to 8,742.88, 13,112.70 and 2,501.56

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Solution

The fourth proportional to 8,742.88, 13,112.70 and 2,501.56 is: 3,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.88 : 13,112.70 = 2,501.56 : x
  2. Step 2: Convert to fraction form
    8,742.88/13,112.70 = 2,501.56/x
  3. Step 3: Cross multiply
    8,742.88x = 13,112.70 × 2,501.56
  4. Step 4: Simplify right side
    8,742.88x = 32,802,205.81
  5. Step 5: Solve for x
    x = 32,802,205.81/8,742.88
  6. Step 6: Final answer
    x = 3,751.88

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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.