Home / 11,870.30-17,805.81-4,079

Finding the Fourth Proportional to 11,870.30, 17,805.81 and 4,079

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Solution

The fourth proportional to 11,870.30, 17,805.81 and 4,079 is: 6,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.30 : 17,805.81 = 4,079 : x
  2. Step 2: Convert to fraction form
    11,870.30/17,805.81 = 4,079/x
  3. Step 3: Cross multiply
    11,870.30x = 17,805.81 × 4,079
  4. Step 4: Simplify right side
    11,870.30x = 72,629,898.99
  5. Step 5: Solve for x
    x = 72,629,898.99/11,870.30
  6. Step 6: Final answer
    x = 6,118.62

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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.