Home / 19,910.56-27,475.05-11,412.58

Finding the Fourth Proportional to 19,910.56, 27,475.05 and 11,412.58

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Solution

The fourth proportional to 19,910.56, 27,475.05 and 11,412.58 is: 15,748.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.56 : 27,475.05 = 11,412.58 : x
  2. Step 2: Convert to fraction form
    19,910.56/27,475.05 = 11,412.58/x
  3. Step 3: Cross multiply
    19,910.56x = 27,475.05 × 11,412.58
  4. Step 4: Simplify right side
    19,910.56x = 313,561,206.13
  5. Step 5: Solve for x
    x = 313,561,206.13/19,910.56
  6. Step 6: Final answer
    x = 15,748.49

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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.