Home / 15,077.31-20,807.37-8,362.53

Finding the Fourth Proportional to 15,077.31, 20,807.37 and 8,362.53

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Solution

The fourth proportional to 15,077.31, 20,807.37 and 8,362.53 is: 11,540.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.31 : 20,807.37 = 8,362.53 : x
  2. Step 2: Convert to fraction form
    15,077.31/20,807.37 = 8,362.53/x
  3. Step 3: Cross multiply
    15,077.31x = 20,807.37 × 8,362.53
  4. Step 4: Simplify right side
    15,077.31x = 174,002,255.85
  5. Step 5: Solve for x
    x = 174,002,255.85/15,077.31
  6. Step 6: Final answer
    x = 11,540.67

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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.