Home / 13,338.06-18,384.08-11,435.37

Finding the Fourth Proportional to 13,338.06, 18,384.08 and 11,435.37

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Solution

The fourth proportional to 13,338.06, 18,384.08 and 11,435.37 is: 15,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.06 : 18,384.08 = 11,435.37 : x
  2. Step 2: Convert to fraction form
    13,338.06/18,384.08 = 11,435.37/x
  3. Step 3: Cross multiply
    13,338.06x = 18,384.08 × 11,435.37
  4. Step 4: Simplify right side
    13,338.06x = 210,228,699.73
  5. Step 5: Solve for x
    x = 210,228,699.73/13,338.06
  6. Step 6: Final answer
    x = 15,761.57

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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.