Home / 13,613.49-18,762.71-13,234.41

Finding the Fourth Proportional to 13,613.49, 18,762.71 and 13,234.41

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Solution

The fourth proportional to 13,613.49, 18,762.71 and 13,234.41 is: 18,240.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.49 : 18,762.71 = 13,234.41 : x
  2. Step 2: Convert to fraction form
    13,613.49/18,762.71 = 13,234.41/x
  3. Step 3: Cross multiply
    13,613.49x = 18,762.71 × 13,234.41
  4. Step 4: Simplify right side
    13,613.49x = 248,313,330.68
  5. Step 5: Solve for x
    x = 248,313,330.68/13,613.49
  6. Step 6: Final answer
    x = 18,240.24

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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.