Home / 13,358.94-18,436.05-8,054.52

Finding the Fourth Proportional to 13,358.94, 18,436.05 and 8,054.52

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Solution

The fourth proportional to 13,358.94, 18,436.05 and 8,054.52 is: 11,115.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.94 : 18,436.05 = 8,054.52 : x
  2. Step 2: Convert to fraction form
    13,358.94/18,436.05 = 8,054.52/x
  3. Step 3: Cross multiply
    13,358.94x = 18,436.05 × 8,054.52
  4. Step 4: Simplify right side
    13,358.94x = 148,493,533.45
  5. Step 5: Solve for x
    x = 148,493,533.45/13,358.94
  6. Step 6: Final answer
    x = 11,115.67

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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.