Home / 15,077.02-20,806.20-8,362.60

Finding the Fourth Proportional to 15,077.02, 20,806.20 and 8,362.60

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Solution

The fourth proportional to 15,077.02, 20,806.20 and 8,362.60 is: 11,540.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.02 : 20,806.20 = 8,362.60 : x
  2. Step 2: Convert to fraction form
    15,077.02/20,806.20 = 8,362.60/x
  3. Step 3: Cross multiply
    15,077.02x = 20,806.20 × 8,362.60
  4. Step 4: Simplify right side
    15,077.02x = 173,993,928.12
  5. Step 5: Solve for x
    x = 173,993,928.12/15,077.02
  6. Step 6: Final answer
    x = 11,540.34

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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.