Home / 19,856.90-27,403.16-11,473.40

Finding the Fourth Proportional to 19,856.90, 27,403.16 and 11,473.40

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Solution

The fourth proportional to 19,856.90, 27,403.16 and 11,473.40 is: 15,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.90 : 27,403.16 = 11,473.40 : x
  2. Step 2: Convert to fraction form
    19,856.90/27,403.16 = 11,473.40/x
  3. Step 3: Cross multiply
    19,856.90x = 27,403.16 × 11,473.40
  4. Step 4: Simplify right side
    19,856.90x = 314,407,221.56
  5. Step 5: Solve for x
    x = 314,407,221.56/19,856.90
  6. Step 6: Final answer
    x = 15,833.65

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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.