Home / 11,620.60-17,430.74-2,855.59

Finding the Fourth Proportional to 11,620.60, 17,430.74 and 2,855.59

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Solution

The fourth proportional to 11,620.60, 17,430.74 and 2,855.59 is: 4,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.60 : 17,430.74 = 2,855.59 : x
  2. Step 2: Convert to fraction form
    11,620.60/17,430.74 = 2,855.59/x
  3. Step 3: Cross multiply
    11,620.60x = 17,430.74 × 2,855.59
  4. Step 4: Simplify right side
    11,620.60x = 49,775,010.40
  5. Step 5: Solve for x
    x = 49,775,010.40/11,620.60
  6. Step 6: Final answer
    x = 4,283.34

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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.