Home / 12,945.77-19,412.52-4,509.33

Finding the Fourth Proportional to 12,945.77, 19,412.52 and 4,509.33

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Solution

The fourth proportional to 12,945.77, 19,412.52 and 4,509.33 is: 6,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.77 : 19,412.52 = 4,509.33 : x
  2. Step 2: Convert to fraction form
    12,945.77/19,412.52 = 4,509.33/x
  3. Step 3: Cross multiply
    12,945.77x = 19,412.52 × 4,509.33
  4. Step 4: Simplify right side
    12,945.77x = 87,537,507.34
  5. Step 5: Solve for x
    x = 87,537,507.34/12,945.77
  6. Step 6: Final answer
    x = 6,761.86

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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.