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Finding the Fourth Proportional to 13,394.41, 18,471.46 and 8,015.93

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Solution

The fourth proportional to 13,394.41, 18,471.46 and 8,015.93 is: 11,054.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.41 : 18,471.46 = 8,015.93 : x
  2. Step 2: Convert to fraction form
    13,394.41/18,471.46 = 8,015.93/x
  3. Step 3: Cross multiply
    13,394.41x = 18,471.46 × 8,015.93
  4. Step 4: Simplify right side
    13,394.41x = 148,065,930.36
  5. Step 5: Solve for x
    x = 148,065,930.36/13,394.41
  6. Step 6: Final answer
    x = 11,054.31

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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.