Home / 11,075.50-15,285.38-6,825.66

Finding the Fourth Proportional to 11,075.50, 15,285.38 and 6,825.66

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Solution

The fourth proportional to 11,075.50, 15,285.38 and 6,825.66 is: 9,420.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,075.50 : 15,285.38 = 6,825.66 : x
  2. Step 2: Convert to fraction form
    11,075.50/15,285.38 = 6,825.66/x
  3. Step 3: Cross multiply
    11,075.50x = 15,285.38 × 6,825.66
  4. Step 4: Simplify right side
    11,075.50x = 104,332,806.85
  5. Step 5: Solve for x
    x = 104,332,806.85/11,075.50
  6. Step 6: Final answer
    x = 9,420.14

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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.