Home / 12,805.48-19,163.58-8,860.84

Finding the Fourth Proportional to 12,805.48, 19,163.58 and 8,860.84

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Solution

The fourth proportional to 12,805.48, 19,163.58 and 8,860.84 is: 13,260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805.48 : 19,163.58 = 8,860.84 : x
  2. Step 2: Convert to fraction form
    12,805.48/19,163.58 = 8,860.84/x
  3. Step 3: Cross multiply
    12,805.48x = 19,163.58 × 8,860.84
  4. Step 4: Simplify right side
    12,805.48x = 169,805,416.21
  5. Step 5: Solve for x
    x = 169,805,416.21/12,805.48
  6. Step 6: Final answer
    x = 13,260.37

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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.