Home / 13,816.12-19,066.92-7,847.68

Finding the Fourth Proportional to 13,816.12, 19,066.92 and 7,847.68

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Solution

The fourth proportional to 13,816.12, 19,066.92 and 7,847.68 is: 10,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.12 : 19,066.92 = 7,847.68 : x
  2. Step 2: Convert to fraction form
    13,816.12/19,066.92 = 7,847.68/x
  3. Step 3: Cross multiply
    13,816.12x = 19,066.92 × 7,847.68
  4. Step 4: Simplify right side
    13,816.12x = 149,631,086.75
  5. Step 5: Solve for x
    x = 149,631,086.75/13,816.12
  6. Step 6: Final answer
    x = 10,830.18

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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.