Home / 11,200.36-16,800.54-7,122.28

Finding the Fourth Proportional to 11,200.36, 16,800.54 and 7,122.28

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Solution

The fourth proportional to 11,200.36, 16,800.54 and 7,122.28 is: 10,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,200.36 : 16,800.54 = 7,122.28 : x
  2. Step 2: Convert to fraction form
    11,200.36/16,800.54 = 7,122.28/x
  3. Step 3: Cross multiply
    11,200.36x = 16,800.54 × 7,122.28
  4. Step 4: Simplify right side
    11,200.36x = 119,658,150.03
  5. Step 5: Solve for x
    x = 119,658,150.03/11,200.36
  6. Step 6: Final answer
    x = 10,683.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.