Home / 12,813.77-19,221.87-4,049.98

Finding the Fourth Proportional to 12,813.77, 19,221.87 and 4,049.98

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Solution

The fourth proportional to 12,813.77, 19,221.87 and 4,049.98 is: 6,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813.77 : 19,221.87 = 4,049.98 : x
  2. Step 2: Convert to fraction form
    12,813.77/19,221.87 = 4,049.98/x
  3. Step 3: Cross multiply
    12,813.77x = 19,221.87 × 4,049.98
  4. Step 4: Simplify right side
    12,813.77x = 77,848,189.06
  5. Step 5: Solve for x
    x = 77,848,189.06/12,813.77
  6. Step 6: Final answer
    x = 6,075.35

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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.