Home / 12,891.06-19,338.44-4,888.77

Finding the Fourth Proportional to 12,891.06, 19,338.44 and 4,888.77

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Solution

The fourth proportional to 12,891.06, 19,338.44 and 4,888.77 is: 7,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891.06 : 19,338.44 = 4,888.77 : x
  2. Step 2: Convert to fraction form
    12,891.06/19,338.44 = 4,888.77/x
  3. Step 3: Cross multiply
    12,891.06x = 19,338.44 × 4,888.77
  4. Step 4: Simplify right side
    12,891.06x = 94,541,179.21
  5. Step 5: Solve for x
    x = 94,541,179.21/12,891.06
  6. Step 6: Final answer
    x = 7,333.86

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1.5x scale

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.