Home / 10,140.44-13,993.83-5,664.36

Finding the Fourth Proportional to 10,140.44, 13,993.83 and 5,664.36

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Solution

The fourth proportional to 10,140.44, 13,993.83 and 5,664.36 is: 7,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.44 : 13,993.83 = 5,664.36 : x
  2. Step 2: Convert to fraction form
    10,140.44/13,993.83 = 5,664.36/x
  3. Step 3: Cross multiply
    10,140.44x = 13,993.83 × 5,664.36
  4. Step 4: Simplify right side
    10,140.44x = 79,266,090.90
  5. Step 5: Solve for x
    x = 79,266,090.90/10,140.44
  6. Step 6: Final answer
    x = 7,816.83

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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.