Home / 15,077.09-20,806.23-8,362.54

Finding the Fourth Proportional to 15,077.09, 20,806.23 and 8,362.54

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Solution

The fourth proportional to 15,077.09, 20,806.23 and 8,362.54 is: 11,540.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.09 : 20,806.23 = 8,362.54 : x
  2. Step 2: Convert to fraction form
    15,077.09/20,806.23 = 8,362.54/x
  3. Step 3: Cross multiply
    15,077.09x = 20,806.23 × 8,362.54
  4. Step 4: Simplify right side
    15,077.09x = 173,992,952.71
  5. Step 5: Solve for x
    x = 173,992,952.71/15,077.09
  6. Step 6: Final answer
    x = 11,540.22

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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.