Home / 7,809.60-10,777.47-4,272.99

Finding the Fourth Proportional to 7,809.60, 10,777.47 and 4,272.99

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Solution

The fourth proportional to 7,809.60, 10,777.47 and 4,272.99 is: 5,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.60 : 10,777.47 = 4,272.99 : x
  2. Step 2: Convert to fraction form
    7,809.60/10,777.47 = 4,272.99/x
  3. Step 3: Cross multiply
    7,809.60x = 10,777.47 × 4,272.99
  4. Step 4: Simplify right side
    7,809.60x = 46,052,021.54
  5. Step 5: Solve for x
    x = 46,052,021.54/7,809.60
  6. Step 6: Final answer
    x = 5,896.85

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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.