Home / 19,866.27-27,403.99-11,903.89

Finding the Fourth Proportional to 19,866.27, 27,403.99 and 11,903.89

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Solution

The fourth proportional to 19,866.27, 27,403.99 and 11,903.89 is: 16,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.27 : 27,403.99 = 11,903.89 : x
  2. Step 2: Convert to fraction form
    19,866.27/27,403.99 = 11,903.89/x
  3. Step 3: Cross multiply
    19,866.27x = 27,403.99 × 11,903.89
  4. Step 4: Simplify right side
    19,866.27x = 326,213,945.50
  5. Step 5: Solve for x
    x = 326,213,945.50/19,866.27
  6. Step 6: Final answer
    x = 16,420.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.