Home / 12,777.73-19,171.14-4,880.83

Finding the Fourth Proportional to 12,777.73, 19,171.14 and 4,880.83

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Solution

The fourth proportional to 12,777.73, 19,171.14 and 4,880.83 is: 7,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.73 : 19,171.14 = 4,880.83 : x
  2. Step 2: Convert to fraction form
    12,777.73/19,171.14 = 4,880.83/x
  3. Step 3: Cross multiply
    12,777.73x = 19,171.14 × 4,880.83
  4. Step 4: Simplify right side
    12,777.73x = 93,571,075.25
  5. Step 5: Solve for x
    x = 93,571,075.25/12,777.73
  6. Step 6: Final answer
    x = 7,322.98

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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.