Home / 17,919.36-26,848.80-12,699.36

Finding the Fourth Proportional to 17,919.36, 26,848.80 and 12,699.36

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Solution

The fourth proportional to 17,919.36, 26,848.80 and 12,699.36 is: 19,027.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.36 : 26,848.80 = 12,699.36 : x
  2. Step 2: Convert to fraction form
    17,919.36/26,848.80 = 12,699.36/x
  3. Step 3: Cross multiply
    17,919.36x = 26,848.80 × 12,699.36
  4. Step 4: Simplify right side
    17,919.36x = 340,962,576.77
  5. Step 5: Solve for x
    x = 340,962,576.77/17,919.36
  6. Step 6: Final answer
    x = 19,027.61

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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.