Home / 13,519.96-18,658.26-7,551.76

Finding the Fourth Proportional to 13,519.96, 18,658.26 and 7,551.76

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Solution

The fourth proportional to 13,519.96, 18,658.26 and 7,551.76 is: 10,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.96 : 18,658.26 = 7,551.76 : x
  2. Step 2: Convert to fraction form
    13,519.96/18,658.26 = 7,551.76/x
  3. Step 3: Cross multiply
    13,519.96x = 18,658.26 × 7,551.76
  4. Step 4: Simplify right side
    13,519.96x = 140,902,701.54
  5. Step 5: Solve for x
    x = 140,902,701.54/13,519.96
  6. Step 6: Final answer
    x = 10,421.83

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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.