Home / 8,859.77-13,290.56-3,930.51

Finding the Fourth Proportional to 8,859.77, 13,290.56 and 3,930.51

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Solution

The fourth proportional to 8,859.77, 13,290.56 and 3,930.51 is: 5,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.77 : 13,290.56 = 3,930.51 : x
  2. Step 2: Convert to fraction form
    8,859.77/13,290.56 = 3,930.51/x
  3. Step 3: Cross multiply
    8,859.77x = 13,290.56 × 3,930.51
  4. Step 4: Simplify right side
    8,859.77x = 52,238,678.99
  5. Step 5: Solve for x
    x = 52,238,678.99/8,859.77
  6. Step 6: Final answer
    x = 5,896.17

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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.