Home / 7,427.07-11,140.59-2,986.77

Finding the Fourth Proportional to 7,427.07, 11,140.59 and 2,986.77

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Solution

The fourth proportional to 7,427.07, 11,140.59 and 2,986.77 is: 4,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.07 : 11,140.59 = 2,986.77 : x
  2. Step 2: Convert to fraction form
    7,427.07/11,140.59 = 2,986.77/x
  3. Step 3: Cross multiply
    7,427.07x = 11,140.59 × 2,986.77
  4. Step 4: Simplify right side
    7,427.07x = 33,274,379.99
  5. Step 5: Solve for x
    x = 33,274,379.99/7,427.07
  6. Step 6: Final answer
    x = 4,480.15

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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.