Home / 19,813.48-27,342.30-11,856.40

Finding the Fourth Proportional to 19,813.48, 27,342.30 and 11,856.40

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Solution

The fourth proportional to 19,813.48, 27,342.30 and 11,856.40 is: 16,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.48 : 27,342.30 = 11,856.40 : x
  2. Step 2: Convert to fraction form
    19,813.48/27,342.30 = 11,856.40/x
  3. Step 3: Cross multiply
    19,813.48x = 27,342.30 × 11,856.40
  4. Step 4: Simplify right side
    19,813.48x = 324,181,245.72
  5. Step 5: Solve for x
    x = 324,181,245.72/19,813.48
  6. Step 6: Final answer
    x = 16,361.65

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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.