Home / 12,626.80-18,947.40-4,841.20

Finding the Fourth Proportional to 12,626.80, 18,947.40 and 4,841.20

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Solution

The fourth proportional to 12,626.80, 18,947.40 and 4,841.20 is: 7,264.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.80 : 18,947.40 = 4,841.20 : x
  2. Step 2: Convert to fraction form
    12,626.80/18,947.40 = 4,841.20/x
  3. Step 3: Cross multiply
    12,626.80x = 18,947.40 × 4,841.20
  4. Step 4: Simplify right side
    12,626.80x = 91,728,152.88
  5. Step 5: Solve for x
    x = 91,728,152.88/12,626.80
  6. Step 6: Final answer
    x = 7,264.56

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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.