Home / 19,690.32-27,168.40-11,735.16

Finding the Fourth Proportional to 19,690.32, 27,168.40 and 11,735.16

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Solution

The fourth proportional to 19,690.32, 27,168.40 and 11,735.16 is: 16,191.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.32 : 27,168.40 = 11,735.16 : x
  2. Step 2: Convert to fraction form
    19,690.32/27,168.40 = 11,735.16/x
  3. Step 3: Cross multiply
    19,690.32x = 27,168.40 × 11,735.16
  4. Step 4: Simplify right side
    19,690.32x = 318,825,520.94
  5. Step 5: Solve for x
    x = 318,825,520.94/19,690.32
  6. Step 6: Final answer
    x = 16,191.99

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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.