Home / 13,735.82-18,955.38-7,448.18

Finding the Fourth Proportional to 13,735.82, 18,955.38 and 7,448.18

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Solution

The fourth proportional to 13,735.82, 18,955.38 and 7,448.18 is: 10,278.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.82 : 18,955.38 = 7,448.18 : x
  2. Step 2: Convert to fraction form
    13,735.82/18,955.38 = 7,448.18/x
  3. Step 3: Cross multiply
    13,735.82x = 18,955.38 × 7,448.18
  4. Step 4: Simplify right side
    13,735.82x = 141,183,082.21
  5. Step 5: Solve for x
    x = 141,183,082.21/13,735.82
  6. Step 6: Final answer
    x = 10,278.46

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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.