Home / 19,795.52-27,319.12-11,412.56

Finding the Fourth Proportional to 19,795.52, 27,319.12 and 11,412.56

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Solution

The fourth proportional to 19,795.52, 27,319.12 and 11,412.56 is: 15,750.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.52 : 27,319.12 = 11,412.56 : x
  2. Step 2: Convert to fraction form
    19,795.52/27,319.12 = 11,412.56/x
  3. Step 3: Cross multiply
    19,795.52x = 27,319.12 × 11,412.56
  4. Step 4: Simplify right side
    19,795.52x = 311,781,096.15
  5. Step 5: Solve for x
    x = 311,781,096.15/19,795.52
  6. Step 6: Final answer
    x = 15,750.08

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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.