Home / 11,779.12-17,672.70-7,391.44

Finding the Fourth Proportional to 11,779.12, 17,672.70 and 7,391.44

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Solution

The fourth proportional to 11,779.12, 17,672.70 and 7,391.44 is: 11,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.12 : 17,672.70 = 7,391.44 : x
  2. Step 2: Convert to fraction form
    11,779.12/17,672.70 = 7,391.44/x
  3. Step 3: Cross multiply
    11,779.12x = 17,672.70 × 7,391.44
  4. Step 4: Simplify right side
    11,779.12x = 130,626,701.69
  5. Step 5: Solve for x
    x = 130,626,701.69/11,779.12
  6. Step 6: Final answer
    x = 11,089.68

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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.