Home / 19,109.81-26,372.96-11,556.42

Finding the Fourth Proportional to 19,109.81, 26,372.96 and 11,556.42

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Solution

The fourth proportional to 19,109.81, 26,372.96 and 11,556.42 is: 15,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.81 : 26,372.96 = 11,556.42 : x
  2. Step 2: Convert to fraction form
    19,109.81/26,372.96 = 11,556.42/x
  3. Step 3: Cross multiply
    19,109.81x = 26,372.96 × 11,556.42
  4. Step 4: Simplify right side
    19,109.81x = 304,776,944.62
  5. Step 5: Solve for x
    x = 304,776,944.62/19,109.81
  6. Step 6: Final answer
    x = 15,948.72

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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.