Home / 12,666.24-18,992.07-3,898.80

Finding the Fourth Proportional to 12,666.24, 18,992.07 and 3,898.80

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Solution

The fourth proportional to 12,666.24, 18,992.07 and 3,898.80 is: 5,845.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.24 : 18,992.07 = 3,898.80 : x
  2. Step 2: Convert to fraction form
    12,666.24/18,992.07 = 3,898.80/x
  3. Step 3: Cross multiply
    12,666.24x = 18,992.07 × 3,898.80
  4. Step 4: Simplify right side
    12,666.24x = 74,046,282.52
  5. Step 5: Solve for x
    x = 74,046,282.52/12,666.24
  6. Step 6: Final answer
    x = 5,845.96

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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.