Home / 19,649.70-27,112.38-11,690.37

Finding the Fourth Proportional to 19,649.70, 27,112.38 and 11,690.37

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Solution

The fourth proportional to 19,649.70, 27,112.38 and 11,690.37 is: 16,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.70 : 27,112.38 = 11,690.37 : x
  2. Step 2: Convert to fraction form
    19,649.70/27,112.38 = 11,690.37/x
  3. Step 3: Cross multiply
    19,649.70x = 27,112.38 × 11,690.37
  4. Step 4: Simplify right side
    19,649.70x = 316,953,753.78
  5. Step 5: Solve for x
    x = 316,953,753.78/19,649.70
  6. Step 6: Final answer
    x = 16,130.21

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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.