Home / 7,913.80-11,873.45-2,984.86

Finding the Fourth Proportional to 7,913.80, 11,873.45 and 2,984.86

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Solution

The fourth proportional to 7,913.80, 11,873.45 and 2,984.86 is: 4,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.80 : 11,873.45 = 2,984.86 : x
  2. Step 2: Convert to fraction form
    7,913.80/11,873.45 = 2,984.86/x
  3. Step 3: Cross multiply
    7,913.80x = 11,873.45 × 2,984.86
  4. Step 4: Simplify right side
    7,913.80x = 35,440,585.97
  5. Step 5: Solve for x
    x = 35,440,585.97/7,913.80
  6. Step 6: Final answer
    x = 4,478.33

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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.