Home / 12,864.99-19,329.77-8,187.03

Finding the Fourth Proportional to 12,864.99, 19,329.77 and 8,187.03

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Solution

The fourth proportional to 12,864.99, 19,329.77 and 8,187.03 is: 12,301.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.99 : 19,329.77 = 8,187.03 : x
  2. Step 2: Convert to fraction form
    12,864.99/19,329.77 = 8,187.03/x
  3. Step 3: Cross multiply
    12,864.99x = 19,329.77 × 8,187.03
  4. Step 4: Simplify right side
    12,864.99x = 158,253,406.88
  5. Step 5: Solve for x
    x = 158,253,406.88/12,864.99
  6. Step 6: Final answer
    x = 12,301.09

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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.