Home / 13,891.87-19,170.28-7,925.44

Finding the Fourth Proportional to 13,891.87, 19,170.28 and 7,925.44

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Solution

The fourth proportional to 13,891.87, 19,170.28 and 7,925.44 is: 10,936.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.87 : 19,170.28 = 7,925.44 : x
  2. Step 2: Convert to fraction form
    13,891.87/19,170.28 = 7,925.44/x
  3. Step 3: Cross multiply
    13,891.87x = 19,170.28 × 7,925.44
  4. Step 4: Simplify right side
    13,891.87x = 151,932,903.92
  5. Step 5: Solve for x
    x = 151,932,903.92/13,891.87
  6. Step 6: Final answer
    x = 10,936.82

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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.