Home / 13,842.24-20,663.66-12,858.09

Finding the Fourth Proportional to 13,842.24, 20,663.66 and 12,858.09

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Solution

The fourth proportional to 13,842.24, 20,663.66 and 12,858.09 is: 19,194.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.24 : 20,663.66 = 12,858.09 : x
  2. Step 2: Convert to fraction form
    13,842.24/20,663.66 = 12,858.09/x
  3. Step 3: Cross multiply
    13,842.24x = 20,663.66 × 12,858.09
  4. Step 4: Simplify right side
    13,842.24x = 265,695,135.72
  5. Step 5: Solve for x
    x = 265,695,135.72/13,842.24
  6. Step 6: Final answer
    x = 19,194.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.