Home / 13,818.51-19,069.92-7,849.80

Finding the Fourth Proportional to 13,818.51, 19,069.92 and 7,849.80

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Solution

The fourth proportional to 13,818.51, 19,069.92 and 7,849.80 is: 10,832.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.51 : 19,069.92 = 7,849.80 : x
  2. Step 2: Convert to fraction form
    13,818.51/19,069.92 = 7,849.80/x
  3. Step 3: Cross multiply
    13,818.51x = 19,069.92 × 7,849.80
  4. Step 4: Simplify right side
    13,818.51x = 149,695,058.02
  5. Step 5: Solve for x
    x = 149,695,058.02/13,818.51
  6. Step 6: Final answer
    x = 10,832.94

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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.