Home / 19,868.61-27,418.60-11,370.69

Finding the Fourth Proportional to 19,868.61, 27,418.60 and 11,370.69

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Solution

The fourth proportional to 19,868.61, 27,418.60 and 11,370.69 is: 15,691.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.61 : 27,418.60 = 11,370.69 : x
  2. Step 2: Convert to fraction form
    19,868.61/27,418.60 = 11,370.69/x
  3. Step 3: Cross multiply
    19,868.61x = 27,418.60 × 11,370.69
  4. Step 4: Simplify right side
    19,868.61x = 311,768,453.60
  5. Step 5: Solve for x
    x = 311,768,453.60/19,868.61
  6. Step 6: Final answer
    x = 15,691.51

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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.