Home / 10,979.33-16,457.20-4,742.28

Finding the Fourth Proportional to 10,979.33, 16,457.20 and 4,742.28

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Solution

The fourth proportional to 10,979.33, 16,457.20 and 4,742.28 is: 7,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.33 : 16,457.20 = 4,742.28 : x
  2. Step 2: Convert to fraction form
    10,979.33/16,457.20 = 4,742.28/x
  3. Step 3: Cross multiply
    10,979.33x = 16,457.20 × 4,742.28
  4. Step 4: Simplify right side
    10,979.33x = 78,044,650.42
  5. Step 5: Solve for x
    x = 78,044,650.42/10,979.33
  6. Step 6: Final answer
    x = 7,108.33

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