Home / 19,830.94-27,366.86-10,878.37

Finding the Fourth Proportional to 19,830.94, 27,366.86 and 10,878.37

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Solution

The fourth proportional to 19,830.94, 27,366.86 and 10,878.37 is: 15,012.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.94 : 27,366.86 = 10,878.37 : x
  2. Step 2: Convert to fraction form
    19,830.94/27,366.86 = 10,878.37/x
  3. Step 3: Cross multiply
    19,830.94x = 27,366.86 × 10,878.37
  4. Step 4: Simplify right side
    19,830.94x = 297,706,828.82
  5. Step 5: Solve for x
    x = 297,706,828.82/19,830.94
  6. Step 6: Final answer
    x = 15,012.24

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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.