Home / 8,756.39-13,134.69-2,913

Finding the Fourth Proportional to 8,756.39, 13,134.69 and 2,913

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Solution

The fourth proportional to 8,756.39, 13,134.69 and 2,913 is: 4,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.39 : 13,134.69 = 2,913 : x
  2. Step 2: Convert to fraction form
    8,756.39/13,134.69 = 2,913/x
  3. Step 3: Cross multiply
    8,756.39x = 13,134.69 × 2,913
  4. Step 4: Simplify right side
    8,756.39x = 38,261,351.97
  5. Step 5: Solve for x
    x = 38,261,351.97/8,756.39
  6. Step 6: Final answer
    x = 4,369.53

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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.