Home / 19,890.09-27,448.67-10,937.97

Finding the Fourth Proportional to 19,890.09, 27,448.67 and 10,937.97

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Solution

The fourth proportional to 19,890.09, 27,448.67 and 10,937.97 is: 15,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.09 : 27,448.67 = 10,937.97 : x
  2. Step 2: Convert to fraction form
    19,890.09/27,448.67 = 10,937.97/x
  3. Step 3: Cross multiply
    19,890.09x = 27,448.67 × 10,937.97
  4. Step 4: Simplify right side
    19,890.09x = 300,232,674.31
  5. Step 5: Solve for x
    x = 300,232,674.31/19,890.09
  6. Step 6: Final answer
    x = 15,094.59

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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.