Home / 13,668.96-18,863.23-7,700.72

Finding the Fourth Proportional to 13,668.96, 18,863.23 and 7,700.72

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Solution

The fourth proportional to 13,668.96, 18,863.23 and 7,700.72 is: 10,627.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.96 : 18,863.23 = 7,700.72 : x
  2. Step 2: Convert to fraction form
    13,668.96/18,863.23 = 7,700.72/x
  3. Step 3: Cross multiply
    13,668.96x = 18,863.23 × 7,700.72
  4. Step 4: Simplify right side
    13,668.96x = 145,260,452.53
  5. Step 5: Solve for x
    x = 145,260,452.53/13,668.96
  6. Step 6: Final answer
    x = 10,627.03

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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.