Home / 11,779.40-17,669.10-5,208.68

Finding the Fourth Proportional to 11,779.40, 17,669.10 and 5,208.68

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Solution

The fourth proportional to 11,779.40, 17,669.10 and 5,208.68 is: 7,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.40 : 17,669.10 = 5,208.68 : x
  2. Step 2: Convert to fraction form
    11,779.40/17,669.10 = 5,208.68/x
  3. Step 3: Cross multiply
    11,779.40x = 17,669.10 × 5,208.68
  4. Step 4: Simplify right side
    11,779.40x = 92,032,687.79
  5. Step 5: Solve for x
    x = 92,032,687.79/11,779.40
  6. Step 6: Final answer
    x = 7,813.02

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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.