Home / 18,613.40-25,685.89-13,598.82

Finding the Fourth Proportional to 18,613.40, 25,685.89 and 13,598.82

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Solution

The fourth proportional to 18,613.40, 25,685.89 and 13,598.82 is: 18,765.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.40 : 25,685.89 = 13,598.82 : x
  2. Step 2: Convert to fraction form
    18,613.40/25,685.89 = 13,598.82/x
  3. Step 3: Cross multiply
    18,613.40x = 25,685.89 × 13,598.82
  4. Step 4: Simplify right side
    18,613.40x = 349,297,760.65
  5. Step 5: Solve for x
    x = 349,297,760.65/18,613.40
  6. Step 6: Final answer
    x = 18,765.93

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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.