Home / 9,317.51-13,971.83-3,390.20

Finding the Fourth Proportional to 9,317.51, 13,971.83 and 3,390.20

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Solution

The fourth proportional to 9,317.51, 13,971.83 and 3,390.20 is: 5,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.51 : 13,971.83 = 3,390.20 : x
  2. Step 2: Convert to fraction form
    9,317.51/13,971.83 = 3,390.20/x
  3. Step 3: Cross multiply
    9,317.51x = 13,971.83 × 3,390.20
  4. Step 4: Simplify right side
    9,317.51x = 47,367,236.68
  5. Step 5: Solve for x
    x = 47,367,236.68/9,317.51
  6. Step 6: Final answer
    x = 5,083.68

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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.