Home / 11,385.78-17,075.25-6,117.54

Finding the Fourth Proportional to 11,385.78, 17,075.25 and 6,117.54

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Solution

The fourth proportional to 11,385.78, 17,075.25 and 6,117.54 is: 9,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.78 : 17,075.25 = 6,117.54 : x
  2. Step 2: Convert to fraction form
    11,385.78/17,075.25 = 6,117.54/x
  3. Step 3: Cross multiply
    11,385.78x = 17,075.25 × 6,117.54
  4. Step 4: Simplify right side
    11,385.78x = 104,458,524.89
  5. Step 5: Solve for x
    x = 104,458,524.89/11,385.78
  6. Step 6: Final answer
    x = 9,174.47

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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.