Home / 19,790.09-27,309.12-10,837.70

Finding the Fourth Proportional to 19,790.09, 27,309.12 and 10,837.70

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Solution

The fourth proportional to 19,790.09, 27,309.12 and 10,837.70 is: 14,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.09 : 27,309.12 = 10,837.70 : x
  2. Step 2: Convert to fraction form
    19,790.09/27,309.12 = 10,837.70/x
  3. Step 3: Cross multiply
    19,790.09x = 27,309.12 × 10,837.70
  4. Step 4: Simplify right side
    19,790.09x = 295,968,049.82
  5. Step 5: Solve for x
    x = 295,968,049.82/19,790.09
  6. Step 6: Final answer
    x = 14,955.37

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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.