Home / 7,964.90-11,947.95-2,418.68

Finding the Fourth Proportional to 7,964.90, 11,947.95 and 2,418.68

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Solution

The fourth proportional to 7,964.90, 11,947.95 and 2,418.68 is: 3,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.90 : 11,947.95 = 2,418.68 : x
  2. Step 2: Convert to fraction form
    7,964.90/11,947.95 = 2,418.68/x
  3. Step 3: Cross multiply
    7,964.90x = 11,947.95 × 2,418.68
  4. Step 4: Simplify right side
    7,964.90x = 28,898,267.71
  5. Step 5: Solve for x
    x = 28,898,267.71/7,964.90
  6. Step 6: Final answer
    x = 3,628.20

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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.