Home / 13,669.26-18,863.28-7,619.58

Finding the Fourth Proportional to 13,669.26, 18,863.28 and 7,619.58

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Solution

The fourth proportional to 13,669.26, 18,863.28 and 7,619.58 is: 10,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.26 : 18,863.28 = 7,619.58 : x
  2. Step 2: Convert to fraction form
    13,669.26/18,863.28 = 7,619.58/x
  3. Step 3: Cross multiply
    13,669.26x = 18,863.28 × 7,619.58
  4. Step 4: Simplify right side
    13,669.26x = 143,730,271.02
  5. Step 5: Solve for x
    x = 143,730,271.02/13,669.26
  6. Step 6: Final answer
    x = 10,514.85

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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.