Home / 19,403.82-26,776.49-11,862.79

Finding the Fourth Proportional to 19,403.82, 26,776.49 and 11,862.79

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Solution

The fourth proportional to 19,403.82, 26,776.49 and 11,862.79 is: 16,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.82 : 26,776.49 = 11,862.79 : x
  2. Step 2: Convert to fraction form
    19,403.82/26,776.49 = 11,862.79/x
  3. Step 3: Cross multiply
    19,403.82x = 26,776.49 × 11,862.79
  4. Step 4: Simplify right side
    19,403.82x = 317,643,751.55
  5. Step 5: Solve for x
    x = 317,643,751.55/19,403.82
  6. Step 6: Final answer
    x = 16,370.17

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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.