Home / 13,900.80-19,183.96-7,613.16

Finding the Fourth Proportional to 13,900.80, 19,183.96 and 7,613.16

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Solution

The fourth proportional to 13,900.80, 19,183.96 and 7,613.16 is: 10,506.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.80 : 19,183.96 = 7,613.16 : x
  2. Step 2: Convert to fraction form
    13,900.80/19,183.96 = 7,613.16/x
  3. Step 3: Cross multiply
    13,900.80x = 19,183.96 × 7,613.16
  4. Step 4: Simplify right side
    13,900.80x = 146,050,556.91
  5. Step 5: Solve for x
    x = 146,050,556.91/13,900.80
  6. Step 6: Final answer
    x = 10,506.63

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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.