Home / 13,583.42-20,382.78-10,613.54

Finding the Fourth Proportional to 13,583.42, 20,382.78 and 10,613.54

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Solution

The fourth proportional to 13,583.42, 20,382.78 and 10,613.54 is: 15,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.42 : 20,382.78 = 10,613.54 : x
  2. Step 2: Convert to fraction form
    13,583.42/20,382.78 = 10,613.54/x
  3. Step 3: Cross multiply
    13,583.42x = 20,382.78 × 10,613.54
  4. Step 4: Simplify right side
    13,583.42x = 216,333,450.84
  5. Step 5: Solve for x
    x = 216,333,450.84/13,583.42
  6. Step 6: Final answer
    x = 15,926.29

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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.