Home / 19,138.73-26,412.08-11,586.42

Finding the Fourth Proportional to 19,138.73, 26,412.08 and 11,586.42

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Solution

The fourth proportional to 19,138.73, 26,412.08 and 11,586.42 is: 15,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.73 : 26,412.08 = 11,586.42 : x
  2. Step 2: Convert to fraction form
    19,138.73/26,412.08 = 11,586.42/x
  3. Step 3: Cross multiply
    19,138.73x = 26,412.08 × 11,586.42
  4. Step 4: Simplify right side
    19,138.73x = 306,021,394.02
  5. Step 5: Solve for x
    x = 306,021,394.02/19,138.73
  6. Step 6: Final answer
    x = 15,989.64

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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.