Home / 10,938.36-15,093.90-6,745.80

Finding the Fourth Proportional to 10,938.36, 15,093.90 and 6,745.80

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Solution

The fourth proportional to 10,938.36, 15,093.90 and 6,745.80 is: 9,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.36 : 15,093.90 = 6,745.80 : x
  2. Step 2: Convert to fraction form
    10,938.36/15,093.90 = 6,745.80/x
  3. Step 3: Cross multiply
    10,938.36x = 15,093.90 × 6,745.80
  4. Step 4: Simplify right side
    10,938.36x = 101,820,430.62
  5. Step 5: Solve for x
    x = 101,820,430.62/10,938.36
  6. Step 6: Final answer
    x = 9,308.56

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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.