Home / 13,743.26-18,965.58-7,774.88

Finding the Fourth Proportional to 13,743.26, 18,965.58 and 7,774.88

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Solution

The fourth proportional to 13,743.26, 18,965.58 and 7,774.88 is: 10,729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.26 : 18,965.58 = 7,774.88 : x
  2. Step 2: Convert to fraction form
    13,743.26/18,965.58 = 7,774.88/x
  3. Step 3: Cross multiply
    13,743.26x = 18,965.58 × 7,774.88
  4. Step 4: Simplify right side
    13,743.26x = 147,455,013.80
  5. Step 5: Solve for x
    x = 147,455,013.80/13,743.26
  6. Step 6: Final answer
    x = 10,729.26

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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.