Home / 10,247.26-14,139.19-5,771.20

Finding the Fourth Proportional to 10,247.26, 14,139.19 and 5,771.20

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Solution

The fourth proportional to 10,247.26, 14,139.19 and 5,771.20 is: 7,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.26 : 14,139.19 = 5,771.20 : x
  2. Step 2: Convert to fraction form
    10,247.26/14,139.19 = 5,771.20/x
  3. Step 3: Cross multiply
    10,247.26x = 14,139.19 × 5,771.20
  4. Step 4: Simplify right side
    10,247.26x = 81,600,093.33
  5. Step 5: Solve for x
    x = 81,600,093.33/10,247.26
  6. Step 6: Final answer
    x = 7,963.11

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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.