Home / 19,898.06-27,459.91-11,402.88

Finding the Fourth Proportional to 19,898.06, 27,459.91 and 11,402.88

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Solution

The fourth proportional to 19,898.06, 27,459.91 and 11,402.88 is: 15,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.06 : 27,459.91 = 11,402.88 : x
  2. Step 2: Convert to fraction form
    19,898.06/27,459.91 = 11,402.88/x
  3. Step 3: Cross multiply
    19,898.06x = 27,459.91 × 11,402.88
  4. Step 4: Simplify right side
    19,898.06x = 313,121,969.82
  5. Step 5: Solve for x
    x = 313,121,969.82/19,898.06
  6. Step 6: Final answer
    x = 15,736.31

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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.