Home / 12,126.33-16,735.14-6,821.51

Finding the Fourth Proportional to 12,126.33, 16,735.14 and 6,821.51

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Solution

The fourth proportional to 12,126.33, 16,735.14 and 6,821.51 is: 9,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.33 : 16,735.14 = 6,821.51 : x
  2. Step 2: Convert to fraction form
    12,126.33/16,735.14 = 6,821.51/x
  3. Step 3: Cross multiply
    12,126.33x = 16,735.14 × 6,821.51
  4. Step 4: Simplify right side
    12,126.33x = 114,158,841.19
  5. Step 5: Solve for x
    x = 114,158,841.19/12,126.33
  6. Step 6: Final answer
    x = 9,414.13

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Double scale
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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.