Home / 8,839.78-13,263.34-3,578.51

Finding the Fourth Proportional to 8,839.78, 13,263.34 and 3,578.51

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Solution

The fourth proportional to 8,839.78, 13,263.34 and 3,578.51 is: 5,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.78 : 13,263.34 = 3,578.51 : x
  2. Step 2: Convert to fraction form
    8,839.78/13,263.34 = 3,578.51/x
  3. Step 3: Cross multiply
    8,839.78x = 13,263.34 × 3,578.51
  4. Step 4: Simplify right side
    8,839.78x = 47,462,994.82
  5. Step 5: Solve for x
    x = 47,462,994.82/8,839.78
  6. Step 6: Final answer
    x = 5,369.25

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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.