Home / 26,579.90-39,864.35-11,779.37

Finding the Fourth Proportional to 26,579.90, 39,864.35 and 11,779.37

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Solution

The fourth proportional to 26,579.90, 39,864.35 and 11,779.37 is: 17,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,579.90 : 39,864.35 = 11,779.37 : x
  2. Step 2: Convert to fraction form
    26,579.90/39,864.35 = 11,779.37/x
  3. Step 3: Cross multiply
    26,579.90x = 39,864.35 × 11,779.37
  4. Step 4: Simplify right side
    26,579.90x = 469,576,670.24
  5. Step 5: Solve for x
    x = 469,576,670.24/26,579.90
  6. Step 6: Final answer
    x = 17,666.61

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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.