Home / 13,735.13-18,954.47-7,447.50

Finding the Fourth Proportional to 13,735.13, 18,954.47 and 7,447.50

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Solution

The fourth proportional to 13,735.13, 18,954.47 and 7,447.50 is: 10,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.13 : 18,954.47 = 7,447.50 : x
  2. Step 2: Convert to fraction form
    13,735.13/18,954.47 = 7,447.50/x
  3. Step 3: Cross multiply
    13,735.13x = 18,954.47 × 7,447.50
  4. Step 4: Simplify right side
    13,735.13x = 141,163,433.94
  5. Step 5: Solve for x
    x = 141,163,433.94/13,735.13
  6. Step 6: Final answer
    x = 10,277.55

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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.