Home / 11,582.80-17,374.20-7,840.60

Finding the Fourth Proportional to 11,582.80, 17,374.20 and 7,840.60

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Solution

The fourth proportional to 11,582.80, 17,374.20 and 7,840.60 is: 11,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,582.80 : 17,374.20 = 7,840.60 : x
  2. Step 2: Convert to fraction form
    11,582.80/17,374.20 = 7,840.60/x
  3. Step 3: Cross multiply
    11,582.80x = 17,374.20 × 7,840.60
  4. Step 4: Simplify right side
    11,582.80x = 136,224,152.52
  5. Step 5: Solve for x
    x = 136,224,152.52/11,582.80
  6. Step 6: Final answer
    x = 11,760.90

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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.