Home / 11,407.80-17,109.84-3,618.48

Finding the Fourth Proportional to 11,407.80, 17,109.84 and 3,618.48

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Solution

The fourth proportional to 11,407.80, 17,109.84 and 3,618.48 is: 5,427.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.80 : 17,109.84 = 3,618.48 : x
  2. Step 2: Convert to fraction form
    11,407.80/17,109.84 = 3,618.48/x
  3. Step 3: Cross multiply
    11,407.80x = 17,109.84 × 3,618.48
  4. Step 4: Simplify right side
    11,407.80x = 61,911,613.84
  5. Step 5: Solve for x
    x = 61,911,613.84/11,407.80
  6. Step 6: Final answer
    x = 5,427.13

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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.