Home / 18,701.23-28,057.13-7,615.88

Finding the Fourth Proportional to 18,701.23, 28,057.13 and 7,615.88

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Solution

The fourth proportional to 18,701.23, 28,057.13 and 7,615.88 is: 11,425.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.23 : 28,057.13 = 7,615.88 : x
  2. Step 2: Convert to fraction form
    18,701.23/28,057.13 = 7,615.88/x
  3. Step 3: Cross multiply
    18,701.23x = 28,057.13 × 7,615.88
  4. Step 4: Simplify right side
    18,701.23x = 213,679,735.22
  5. Step 5: Solve for x
    x = 213,679,735.22/18,701.23
  6. Step 6: Final answer
    x = 11,425.97

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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.