Home / 19,919.12-27,490.32-10,968.41

Finding the Fourth Proportional to 19,919.12, 27,490.32 and 10,968.41

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Solution

The fourth proportional to 19,919.12, 27,490.32 and 10,968.41 is: 15,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.12 : 27,490.32 = 10,968.41 : x
  2. Step 2: Convert to fraction form
    19,919.12/27,490.32 = 10,968.41/x
  3. Step 3: Cross multiply
    19,919.12x = 27,490.32 × 10,968.41
  4. Step 4: Simplify right side
    19,919.12x = 301,525,169.52
  5. Step 5: Solve for x
    x = 301,525,169.52/19,919.12
  6. Step 6: Final answer
    x = 15,137.48

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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.