Home / 7,973.76-11,959.71-2,130.83

Finding the Fourth Proportional to 7,973.76, 11,959.71 and 2,130.83

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Solution

The fourth proportional to 7,973.76, 11,959.71 and 2,130.83 is: 3,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.76 : 11,959.71 = 2,130.83 : x
  2. Step 2: Convert to fraction form
    7,973.76/11,959.71 = 2,130.83/x
  3. Step 3: Cross multiply
    7,973.76x = 11,959.71 × 2,130.83
  4. Step 4: Simplify right side
    7,973.76x = 25,484,049.06
  5. Step 5: Solve for x
    x = 25,484,049.06/7,973.76
  6. Step 6: Final answer
    x = 3,195.99

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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.