Home / 18,613.44-25,686.72-10,655.28

Finding the Fourth Proportional to 18,613.44, 25,686.72 and 10,655.28

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Solution

The fourth proportional to 18,613.44, 25,686.72 and 10,655.28 is: 14,704.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.44 : 25,686.72 = 10,655.28 : x
  2. Step 2: Convert to fraction form
    18,613.44/25,686.72 = 10,655.28/x
  3. Step 3: Cross multiply
    18,613.44x = 25,686.72 × 10,655.28
  4. Step 4: Simplify right side
    18,613.44x = 273,699,193.88
  5. Step 5: Solve for x
    x = 273,699,193.88/18,613.44
  6. Step 6: Final answer
    x = 14,704.39

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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.