Home / 18,760.56-28,119.60-6,277.65

Finding the Fourth Proportional to 18,760.56, 28,119.60 and 6,277.65

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Solution

The fourth proportional to 18,760.56, 28,119.60 and 6,277.65 is: 9,409.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.56 : 28,119.60 = 6,277.65 : x
  2. Step 2: Convert to fraction form
    18,760.56/28,119.60 = 6,277.65/x
  3. Step 3: Cross multiply
    18,760.56x = 28,119.60 × 6,277.65
  4. Step 4: Simplify right side
    18,760.56x = 176,525,006.94
  5. Step 5: Solve for x
    x = 176,525,006.94/18,760.56
  6. Step 6: Final answer
    x = 9,409.37

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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.