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Finding the Fourth Proportional to 15,077.46, 20,807.23 and 8,362.87

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Solution

The fourth proportional to 15,077.46, 20,807.23 and 8,362.87 is: 11,540.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.46 : 20,807.23 = 8,362.87 : x
  2. Step 2: Convert to fraction form
    15,077.46/20,807.23 = 8,362.87/x
  3. Step 3: Cross multiply
    15,077.46x = 20,807.23 × 8,362.87
  4. Step 4: Simplify right side
    15,077.46x = 174,008,086.62
  5. Step 5: Solve for x
    x = 174,008,086.62/15,077.46
  6. Step 6: Final answer
    x = 11,540.94

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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.