Home / 13,851.87-20,796.27-11,785.17

Finding the Fourth Proportional to 13,851.87, 20,796.27 and 11,785.17

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Solution

The fourth proportional to 13,851.87, 20,796.27 and 11,785.17 is: 17,693.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.87 : 20,796.27 = 11,785.17 : x
  2. Step 2: Convert to fraction form
    13,851.87/20,796.27 = 11,785.17/x
  3. Step 3: Cross multiply
    13,851.87x = 20,796.27 × 11,785.17
  4. Step 4: Simplify right side
    13,851.87x = 245,087,577.32
  5. Step 5: Solve for x
    x = 245,087,577.32/13,851.87
  6. Step 6: Final answer
    x = 17,693.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.