Home / 13,735.13-18,954.42-7,447.51

Finding the Fourth Proportional to 13,735.13, 18,954.42 and 7,447.51

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Solution

The fourth proportional to 13,735.13, 18,954.42 and 7,447.51 is: 10,277.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.13 : 18,954.42 = 7,447.51 : x
  2. Step 2: Convert to fraction form
    13,735.13/18,954.42 = 7,447.51/x
  3. Step 3: Cross multiply
    13,735.13x = 18,954.42 × 7,447.51
  4. Step 4: Simplify right side
    13,735.13x = 141,163,137.72
  5. Step 5: Solve for x
    x = 141,163,137.72/13,735.13
  6. Step 6: Final answer
    x = 10,277.52

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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.