Home / 10,144.45-13,999.29-5,668.21

Finding the Fourth Proportional to 10,144.45, 13,999.29 and 5,668.21

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Solution

The fourth proportional to 10,144.45, 13,999.29 and 5,668.21 is: 7,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.45 : 13,999.29 = 5,668.21 : x
  2. Step 2: Convert to fraction form
    10,144.45/13,999.29 = 5,668.21/x
  3. Step 3: Cross multiply
    10,144.45x = 13,999.29 × 5,668.21
  4. Step 4: Simplify right side
    10,144.45x = 79,350,915.57
  5. Step 5: Solve for x
    x = 79,350,915.57/10,144.45
  6. Step 6: Final answer
    x = 7,822.10

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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.