Home / 12,446.09-17,175.56-7,730.36

Finding the Fourth Proportional to 12,446.09, 17,175.56 and 7,730.36

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Solution

The fourth proportional to 12,446.09, 17,175.56 and 7,730.36 is: 10,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.09 : 17,175.56 = 7,730.36 : x
  2. Step 2: Convert to fraction form
    12,446.09/17,175.56 = 7,730.36/x
  3. Step 3: Cross multiply
    12,446.09x = 17,175.56 × 7,730.36
  4. Step 4: Simplify right side
    12,446.09x = 132,773,137.47
  5. Step 5: Solve for x
    x = 132,773,137.47/12,446.09
  6. Step 6: Final answer
    x = 10,667.86

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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.