Home / 11,613.62-17,418.80-4,686.50

Finding the Fourth Proportional to 11,613.62, 17,418.80 and 4,686.50

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Solution

The fourth proportional to 11,613.62, 17,418.80 and 4,686.50 is: 7,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613.62 : 17,418.80 = 4,686.50 : x
  2. Step 2: Convert to fraction form
    11,613.62/17,418.80 = 4,686.50/x
  3. Step 3: Cross multiply
    11,613.62x = 17,418.80 × 4,686.50
  4. Step 4: Simplify right side
    11,613.62x = 81,633,206.20
  5. Step 5: Solve for x
    x = 81,633,206.20/11,613.62
  6. Step 6: Final answer
    x = 7,029.09

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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.