Home / 13,117.99-19,685.19-5,326.80

Finding the Fourth Proportional to 13,117.99, 19,685.19 and 5,326.80

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Solution

The fourth proportional to 13,117.99, 19,685.19 and 5,326.80 is: 7,993.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.99 : 19,685.19 = 5,326.80 : x
  2. Step 2: Convert to fraction form
    13,117.99/19,685.19 = 5,326.80/x
  3. Step 3: Cross multiply
    13,117.99x = 19,685.19 × 5,326.80
  4. Step 4: Simplify right side
    13,117.99x = 104,859,070.09
  5. Step 5: Solve for x
    x = 104,859,070.09/13,117.99
  6. Step 6: Final answer
    x = 7,993.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.