Home / 12,435.51-17,161.33-6,770.47

Finding the Fourth Proportional to 12,435.51, 17,161.33 and 6,770.47

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Solution

The fourth proportional to 12,435.51, 17,161.33 and 6,770.47 is: 9,343.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.51 : 17,161.33 = 6,770.47 : x
  2. Step 2: Convert to fraction form
    12,435.51/17,161.33 = 6,770.47/x
  3. Step 3: Cross multiply
    12,435.51x = 17,161.33 × 6,770.47
  4. Step 4: Simplify right side
    12,435.51x = 116,190,269.93
  5. Step 5: Solve for x
    x = 116,190,269.93/12,435.51
  6. Step 6: Final answer
    x = 9,343.43

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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.