Home / 13,735.22-18,954.40-7,766.69

Finding the Fourth Proportional to 13,735.22, 18,954.40 and 7,766.69

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Solution

The fourth proportional to 13,735.22, 18,954.40 and 7,766.69 is: 10,717.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.22 : 18,954.40 = 7,766.69 : x
  2. Step 2: Convert to fraction form
    13,735.22/18,954.40 = 7,766.69/x
  3. Step 3: Cross multiply
    13,735.22x = 18,954.40 × 7,766.69
  4. Step 4: Simplify right side
    13,735.22x = 147,212,948.94
  5. Step 5: Solve for x
    x = 147,212,948.94/13,735.22
  6. Step 6: Final answer
    x = 10,717.92

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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.