Home / 12,829.15-17,716.44-12,130.26

Finding the Fourth Proportional to 12,829.15, 17,716.44 and 12,130.26

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Solution

The fourth proportional to 12,829.15, 17,716.44 and 12,130.26 is: 16,751.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.15 : 17,716.44 = 12,130.26 : x
  2. Step 2: Convert to fraction form
    12,829.15/17,716.44 = 12,130.26/x
  3. Step 3: Cross multiply
    12,829.15x = 17,716.44 × 12,130.26
  4. Step 4: Simplify right side
    12,829.15x = 214,905,023.47
  5. Step 5: Solve for x
    x = 214,905,023.47/12,829.15
  6. Step 6: Final answer
    x = 16,751.31

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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.