Home / 12,742.00-17,584.40-7,076.84

Finding the Fourth Proportional to 12,742.00, 17,584.40 and 7,076.84

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Solution

The fourth proportional to 12,742.00, 17,584.40 and 7,076.84 is: 9,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.00 : 17,584.40 = 7,076.84 : x
  2. Step 2: Convert to fraction form
    12,742.00/17,584.40 = 7,076.84/x
  3. Step 3: Cross multiply
    12,742.00x = 17,584.40 × 7,076.84
  4. Step 4: Simplify right side
    12,742.00x = 124,441,915.07
  5. Step 5: Solve for x
    x = 124,441,915.07/12,742.00
  6. Step 6: Final answer
    x = 9,766.28

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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.