Home / 10,144.55-13,998.21-5,668.13

Finding the Fourth Proportional to 10,144.55, 13,998.21 and 5,668.13

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Solution

The fourth proportional to 10,144.55, 13,998.21 and 5,668.13 is: 7,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.55 : 13,998.21 = 5,668.13 : x
  2. Step 2: Convert to fraction form
    10,144.55/13,998.21 = 5,668.13/x
  3. Step 3: Cross multiply
    10,144.55x = 13,998.21 × 5,668.13
  4. Step 4: Simplify right side
    10,144.55x = 79,343,674.05
  5. Step 5: Solve for x
    x = 79,343,674.05/10,144.55
  6. Step 6: Final answer
    x = 7,821.31

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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.