Home / 19,958.96-27,543.53-11,006.78

Finding the Fourth Proportional to 19,958.96, 27,543.53 and 11,006.78

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Solution

The fourth proportional to 19,958.96, 27,543.53 and 11,006.78 is: 15,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.96 : 27,543.53 = 11,006.78 : x
  2. Step 2: Convert to fraction form
    19,958.96/27,543.53 = 11,006.78/x
  3. Step 3: Cross multiply
    19,958.96x = 27,543.53 × 11,006.78
  4. Step 4: Simplify right side
    19,958.96x = 303,165,575.13
  5. Step 5: Solve for x
    x = 303,165,575.13/19,958.96
  6. Step 6: Final answer
    x = 15,189.45

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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.