Home / 12,185.97-16,817.40-7,409.28

Finding the Fourth Proportional to 12,185.97, 16,817.40 and 7,409.28

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Solution

The fourth proportional to 12,185.97, 16,817.40 and 7,409.28 is: 10,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.97 : 16,817.40 = 7,409.28 : x
  2. Step 2: Convert to fraction form
    12,185.97/16,817.40 = 7,409.28/x
  3. Step 3: Cross multiply
    12,185.97x = 16,817.40 × 7,409.28
  4. Step 4: Simplify right side
    12,185.97x = 124,604,825.47
  5. Step 5: Solve for x
    x = 124,604,825.47/12,185.97
  6. Step 6: Final answer
    x = 10,225.27

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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.