Home / 8,683.36-11,983.58-5,145.80

Finding the Fourth Proportional to 8,683.36, 11,983.58 and 5,145.80

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Solution

The fourth proportional to 8,683.36, 11,983.58 and 5,145.80 is: 7,101.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.36 : 11,983.58 = 5,145.80 : x
  2. Step 2: Convert to fraction form
    8,683.36/11,983.58 = 5,145.80/x
  3. Step 3: Cross multiply
    8,683.36x = 11,983.58 × 5,145.80
  4. Step 4: Simplify right side
    8,683.36x = 61,665,105.96
  5. Step 5: Solve for x
    x = 61,665,105.96/8,683.36
  6. Step 6: Final answer
    x = 7,101.53

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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.