Home / 18,858.06-28,277.37-7,762.68

Finding the Fourth Proportional to 18,858.06, 28,277.37 and 7,762.68

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Solution

The fourth proportional to 18,858.06, 28,277.37 and 7,762.68 is: 11,640.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.06 : 28,277.37 = 7,762.68 : x
  2. Step 2: Convert to fraction form
    18,858.06/28,277.37 = 7,762.68/x
  3. Step 3: Cross multiply
    18,858.06x = 28,277.37 × 7,762.68
  4. Step 4: Simplify right side
    18,858.06x = 219,508,174.55
  5. Step 5: Solve for x
    x = 219,508,174.55/18,858.06
  6. Step 6: Final answer
    x = 11,640.02

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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.