Home / 8,748.78-13,120.47-2,507.12

Finding the Fourth Proportional to 8,748.78, 13,120.47 and 2,507.12

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Solution

The fourth proportional to 8,748.78, 13,120.47 and 2,507.12 is: 3,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.78 : 13,120.47 = 2,507.12 : x
  2. Step 2: Convert to fraction form
    8,748.78/13,120.47 = 2,507.12/x
  3. Step 3: Cross multiply
    8,748.78x = 13,120.47 × 2,507.12
  4. Step 4: Simplify right side
    8,748.78x = 32,894,527.14
  5. Step 5: Solve for x
    x = 32,894,527.14/8,748.78
  6. Step 6: Final answer
    x = 3,759.90

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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.