Home / 19,790.12-27,309.71-11,292.72

Finding the Fourth Proportional to 19,790.12, 27,309.71 and 11,292.72

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Solution

The fourth proportional to 19,790.12, 27,309.71 and 11,292.72 is: 15,583.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.12 : 27,309.71 = 11,292.72 : x
  2. Step 2: Convert to fraction form
    19,790.12/27,309.71 = 11,292.72/x
  3. Step 3: Cross multiply
    19,790.12x = 27,309.71 × 11,292.72
  4. Step 4: Simplify right side
    19,790.12x = 308,400,770.61
  5. Step 5: Solve for x
    x = 308,400,770.61/19,790.12
  6. Step 6: Final answer
    x = 15,583.57

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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.