Home / 19,890.06-27,447.55-10,937.03

Finding the Fourth Proportional to 19,890.06, 27,447.55 and 10,937.03

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Solution

The fourth proportional to 19,890.06, 27,447.55 and 10,937.03 is: 15,092.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.06 : 27,447.55 = 10,937.03 : x
  2. Step 2: Convert to fraction form
    19,890.06/27,447.55 = 10,937.03/x
  3. Step 3: Cross multiply
    19,890.06x = 27,447.55 × 10,937.03
  4. Step 4: Simplify right side
    19,890.06x = 300,194,623.09
  5. Step 5: Solve for x
    x = 300,194,623.09/19,890.06
  6. Step 6: Final answer
    x = 15,092.70

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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.