Home / 8,980.89-13,465.81-3,428.26

Finding the Fourth Proportional to 8,980.89, 13,465.81 and 3,428.26

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Solution

The fourth proportional to 8,980.89, 13,465.81 and 3,428.26 is: 5,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.89 : 13,465.81 = 3,428.26 : x
  2. Step 2: Convert to fraction form
    8,980.89/13,465.81 = 3,428.26/x
  3. Step 3: Cross multiply
    8,980.89x = 13,465.81 × 3,428.26
  4. Step 4: Simplify right side
    8,980.89x = 46,164,297.79
  5. Step 5: Solve for x
    x = 46,164,297.79/8,980.89
  6. Step 6: Final answer
    x = 5,140.28

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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.