Home / 19,911.58-27,468.75-11,939.95

Finding the Fourth Proportional to 19,911.58, 27,468.75 and 11,939.95

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Solution

The fourth proportional to 19,911.58, 27,468.75 and 11,939.95 is: 16,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.58 : 27,468.75 = 11,939.95 : x
  2. Step 2: Convert to fraction form
    19,911.58/27,468.75 = 11,939.95/x
  3. Step 3: Cross multiply
    19,911.58x = 27,468.75 × 11,939.95
  4. Step 4: Simplify right side
    19,911.58x = 327,975,501.56
  5. Step 5: Solve for x
    x = 327,975,501.56/19,911.58
  6. Step 6: Final answer
    x = 16,471.60

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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.