Home / 19,944.90-27,504.78-13,126.74

Finding the Fourth Proportional to 19,944.90, 27,504.78 and 13,126.74

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Solution

The fourth proportional to 19,944.90, 27,504.78 and 13,126.74 is: 18,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,944.90 : 27,504.78 = 13,126.74 : x
  2. Step 2: Convert to fraction form
    19,944.90/27,504.78 = 13,126.74/x
  3. Step 3: Cross multiply
    19,944.90x = 27,504.78 × 13,126.74
  4. Step 4: Simplify right side
    19,944.90x = 361,048,095.82
  5. Step 5: Solve for x
    x = 361,048,095.82/19,944.90
  6. Step 6: Final answer
    x = 18,102.28

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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.