Home / 12,855.00-19,277.49-5,459.75

Finding the Fourth Proportional to 12,855.00, 19,277.49 and 5,459.75

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Solution

The fourth proportional to 12,855.00, 19,277.49 and 5,459.75 is: 8,187.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.00 : 19,277.49 = 5,459.75 : x
  2. Step 2: Convert to fraction form
    12,855.00/19,277.49 = 5,459.75/x
  3. Step 3: Cross multiply
    12,855.00x = 19,277.49 × 5,459.75
  4. Step 4: Simplify right side
    12,855.00x = 105,250,380.84
  5. Step 5: Solve for x
    x = 105,250,380.84/12,855.00
  6. Step 6: Final answer
    x = 8,187.50

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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.