Home / 7,693.76-11,539.20-2,147.36

Finding the Fourth Proportional to 7,693.76, 11,539.20 and 2,147.36

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Solution

The fourth proportional to 7,693.76, 11,539.20 and 2,147.36 is: 3,220.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.76 : 11,539.20 = 2,147.36 : x
  2. Step 2: Convert to fraction form
    7,693.76/11,539.20 = 2,147.36/x
  3. Step 3: Cross multiply
    7,693.76x = 11,539.20 × 2,147.36
  4. Step 4: Simplify right side
    7,693.76x = 24,778,816.51
  5. Step 5: Solve for x
    x = 24,778,816.51/7,693.76
  6. Step 6: Final answer
    x = 3,220.64

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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.