Home / 13,900.88-19,183.20-7,613.48

Finding the Fourth Proportional to 13,900.88, 19,183.20 and 7,613.48

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Solution

The fourth proportional to 13,900.88, 19,183.20 and 7,613.48 is: 10,506.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.88 : 19,183.20 = 7,613.48 : x
  2. Step 2: Convert to fraction form
    13,900.88/19,183.20 = 7,613.48/x
  3. Step 3: Cross multiply
    13,900.88x = 19,183.20 × 7,613.48
  4. Step 4: Simplify right side
    13,900.88x = 146,050,909.54
  5. Step 5: Solve for x
    x = 146,050,909.54/13,900.88
  6. Step 6: Final answer
    x = 10,506.59

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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.