Home / 13,110.67-19,648.48-4,782.86

Finding the Fourth Proportional to 13,110.67, 19,648.48 and 4,782.86

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Solution

The fourth proportional to 13,110.67, 19,648.48 and 4,782.86 is: 7,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.67 : 19,648.48 = 4,782.86 : x
  2. Step 2: Convert to fraction form
    13,110.67/19,648.48 = 4,782.86/x
  3. Step 3: Cross multiply
    13,110.67x = 19,648.48 × 4,782.86
  4. Step 4: Simplify right side
    13,110.67x = 93,975,929.05
  5. Step 5: Solve for x
    x = 93,975,929.05/13,110.67
  6. Step 6: Final answer
    x = 7,167.90

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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.