Home / 19,386.48-29,078.78-6,238.56

Finding the Fourth Proportional to 19,386.48, 29,078.78 and 6,238.56

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Solution

The fourth proportional to 19,386.48, 29,078.78 and 6,238.56 is: 9,357.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.48 : 29,078.78 = 6,238.56 : x
  2. Step 2: Convert to fraction form
    19,386.48/29,078.78 = 6,238.56/x
  3. Step 3: Cross multiply
    19,386.48x = 29,078.78 × 6,238.56
  4. Step 4: Simplify right side
    19,386.48x = 181,409,682.56
  5. Step 5: Solve for x
    x = 181,409,682.56/19,386.48
  6. Step 6: Final answer
    x = 9,357.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.