Home / 9,161.60-13,751.40-4,782.56

Finding the Fourth Proportional to 9,161.60, 13,751.40 and 4,782.56

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Solution

The fourth proportional to 9,161.60, 13,751.40 and 4,782.56 is: 7,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.60 : 13,751.40 = 4,782.56 : x
  2. Step 2: Convert to fraction form
    9,161.60/13,751.40 = 4,782.56/x
  3. Step 3: Cross multiply
    9,161.60x = 13,751.40 × 4,782.56
  4. Step 4: Simplify right side
    9,161.60x = 65,766,895.58
  5. Step 5: Solve for x
    x = 65,766,895.58/9,161.60
  6. Step 6: Final answer
    x = 7,178.54

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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.