Home / 13,556.43-18,702.36-8,519.04

Finding the Fourth Proportional to 13,556.43, 18,702.36 and 8,519.04

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Solution

The fourth proportional to 13,556.43, 18,702.36 and 8,519.04 is: 11,752.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.43 : 18,702.36 = 8,519.04 : x
  2. Step 2: Convert to fraction form
    13,556.43/18,702.36 = 8,519.04/x
  3. Step 3: Cross multiply
    13,556.43x = 18,702.36 × 8,519.04
  4. Step 4: Simplify right side
    13,556.43x = 159,326,152.93
  5. Step 5: Solve for x
    x = 159,326,152.93/13,556.43
  6. Step 6: Final answer
    x = 11,752.81

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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.