Home / 13,089.26-19,636.22-4,780.96

Finding the Fourth Proportional to 13,089.26, 19,636.22 and 4,780.96

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Solution

The fourth proportional to 13,089.26, 19,636.22 and 4,780.96 is: 7,172.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.26 : 19,636.22 = 4,780.96 : x
  2. Step 2: Convert to fraction form
    13,089.26/19,636.22 = 4,780.96/x
  3. Step 3: Cross multiply
    13,089.26x = 19,636.22 × 4,780.96
  4. Step 4: Simplify right side
    13,089.26x = 93,879,945.23
  5. Step 5: Solve for x
    x = 93,879,945.23/13,089.26
  6. Step 6: Final answer
    x = 7,172.29

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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.