Home / 8,672.24-11,969.22-5,137.18

Finding the Fourth Proportional to 8,672.24, 11,969.22 and 5,137.18

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Solution

The fourth proportional to 8,672.24, 11,969.22 and 5,137.18 is: 7,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.24 : 11,969.22 = 5,137.18 : x
  2. Step 2: Convert to fraction form
    8,672.24/11,969.22 = 5,137.18/x
  3. Step 3: Cross multiply
    8,672.24x = 11,969.22 × 5,137.18
  4. Step 4: Simplify right side
    8,672.24x = 61,488,037.60
  5. Step 5: Solve for x
    x = 61,488,037.60/8,672.24
  6. Step 6: Final answer
    x = 7,090.21

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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.