Home / 19,784.97-27,303.99-11,288.47

Finding the Fourth Proportional to 19,784.97, 27,303.99 and 11,288.47

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Solution

The fourth proportional to 19,784.97, 27,303.99 and 11,288.47 is: 15,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.97 : 27,303.99 = 11,288.47 : x
  2. Step 2: Convert to fraction form
    19,784.97/27,303.99 = 11,288.47/x
  3. Step 3: Cross multiply
    19,784.97x = 27,303.99 × 11,288.47
  4. Step 4: Simplify right side
    19,784.97x = 308,220,272.00
  5. Step 5: Solve for x
    x = 308,220,272.00/19,784.97
  6. Step 6: Final answer
    x = 15,578.51

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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.