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Finding the Fourth Proportional to 7,873.04, 11,809.55 and 2,606.63

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Solution

The fourth proportional to 7,873.04, 11,809.55 and 2,606.63 is: 3,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.04 : 11,809.55 = 2,606.63 : x
  2. Step 2: Convert to fraction form
    7,873.04/11,809.55 = 2,606.63/x
  3. Step 3: Cross multiply
    7,873.04x = 11,809.55 × 2,606.63
  4. Step 4: Simplify right side
    7,873.04x = 30,783,055.24
  5. Step 5: Solve for x
    x = 30,783,055.24/7,873.04
  6. Step 6: Final answer
    x = 3,909.94

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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.