Home / 12,826.96-19,235.79-5,431.93

Finding the Fourth Proportional to 12,826.96, 19,235.79 and 5,431.93

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Solution

The fourth proportional to 12,826.96, 19,235.79 and 5,431.93 is: 8,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.96 : 19,235.79 = 5,431.93 : x
  2. Step 2: Convert to fraction form
    12,826.96/19,235.79 = 5,431.93/x
  3. Step 3: Cross multiply
    12,826.96x = 19,235.79 × 5,431.93
  4. Step 4: Simplify right side
    12,826.96x = 104,487,416.69
  5. Step 5: Solve for x
    x = 104,487,416.69/12,826.96
  6. Step 6: Final answer
    x = 8,145.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.