Home / 13,829.16-19,086.12-7,863.24

Finding the Fourth Proportional to 13,829.16, 19,086.12 and 7,863.24

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Solution

The fourth proportional to 13,829.16, 19,086.12 and 7,863.24 is: 10,852.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.16 : 19,086.12 = 7,863.24 : x
  2. Step 2: Convert to fraction form
    13,829.16/19,086.12 = 7,863.24/x
  3. Step 3: Cross multiply
    13,829.16x = 19,086.12 × 7,863.24
  4. Step 4: Simplify right side
    13,829.16x = 150,078,742.23
  5. Step 5: Solve for x
    x = 150,078,742.23/13,829.16
  6. Step 6: Final answer
    x = 10,852.34

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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.