Home / 13,179.51-18,189.77-7,514.27

Finding the Fourth Proportional to 13,179.51, 18,189.77 and 7,514.27

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Solution

The fourth proportional to 13,179.51, 18,189.77 and 7,514.27 is: 10,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.51 : 18,189.77 = 7,514.27 : x
  2. Step 2: Convert to fraction form
    13,179.51/18,189.77 = 7,514.27/x
  3. Step 3: Cross multiply
    13,179.51x = 18,189.77 × 7,514.27
  4. Step 4: Simplify right side
    13,179.51x = 136,682,782.71
  5. Step 5: Solve for x
    x = 136,682,782.71/13,179.51
  6. Step 6: Final answer
    x = 10,370.85

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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.