Home / 9,983.87-13,778.37-5,736.28

Finding the Fourth Proportional to 9,983.87, 13,778.37 and 5,736.28

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Solution

The fourth proportional to 9,983.87, 13,778.37 and 5,736.28 is: 7,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.87 : 13,778.37 = 5,736.28 : x
  2. Step 2: Convert to fraction form
    9,983.87/13,778.37 = 5,736.28/x
  3. Step 3: Cross multiply
    9,983.87x = 13,778.37 × 5,736.28
  4. Step 4: Simplify right side
    9,983.87x = 79,036,588.26
  5. Step 5: Solve for x
    x = 79,036,588.26/9,983.87
  6. Step 6: Final answer
    x = 7,916.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.