Home / 11,913.28-17,870.52-4,518.33

Finding the Fourth Proportional to 11,913.28, 17,870.52 and 4,518.33

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Solution

The fourth proportional to 11,913.28, 17,870.52 and 4,518.33 is: 6,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.28 : 17,870.52 = 4,518.33 : x
  2. Step 2: Convert to fraction form
    11,913.28/17,870.52 = 4,518.33/x
  3. Step 3: Cross multiply
    11,913.28x = 17,870.52 × 4,518.33
  4. Step 4: Simplify right side
    11,913.28x = 80,744,957.08
  5. Step 5: Solve for x
    x = 80,744,957.08/11,913.28
  6. Step 6: Final answer
    x = 6,777.73

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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.