Home / 13,826.60-19,080.66-7,538.98

Finding the Fourth Proportional to 13,826.60, 19,080.66 and 7,538.98

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Solution

The fourth proportional to 13,826.60, 19,080.66 and 7,538.98 is: 10,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.60 : 19,080.66 = 7,538.98 : x
  2. Step 2: Convert to fraction form
    13,826.60/19,080.66 = 7,538.98/x
  3. Step 3: Cross multiply
    13,826.60x = 19,080.66 × 7,538.98
  4. Step 4: Simplify right side
    13,826.60x = 143,848,618.72
  5. Step 5: Solve for x
    x = 143,848,618.72/13,826.60
  6. Step 6: Final answer
    x = 10,403.76

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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.