Home / 11,160.36-15,400.67-6,683.09

Finding the Fourth Proportional to 11,160.36, 15,400.67 and 6,683.09

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Solution

The fourth proportional to 11,160.36, 15,400.67 and 6,683.09 is: 9,222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.36 : 15,400.67 = 6,683.09 : x
  2. Step 2: Convert to fraction form
    11,160.36/15,400.67 = 6,683.09/x
  3. Step 3: Cross multiply
    11,160.36x = 15,400.67 × 6,683.09
  4. Step 4: Simplify right side
    11,160.36x = 102,923,953.25
  5. Step 5: Solve for x
    x = 102,923,953.25/11,160.36
  6. Step 6: Final answer
    x = 9,222.28

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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.