Home / 13,674.23-18,861.68-8,629.55

Finding the Fourth Proportional to 13,674.23, 18,861.68 and 8,629.55

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Solution

The fourth proportional to 13,674.23, 18,861.68 and 8,629.55 is: 11,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.23 : 18,861.68 = 8,629.55 : x
  2. Step 2: Convert to fraction form
    13,674.23/18,861.68 = 8,629.55/x
  3. Step 3: Cross multiply
    13,674.23x = 18,861.68 × 8,629.55
  4. Step 4: Simplify right side
    13,674.23x = 162,767,673.19
  5. Step 5: Solve for x
    x = 162,767,673.19/13,674.23
  6. Step 6: Final answer
    x = 11,903.25

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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.