Home / 12,706.26-19,053.47-6,781.54

Finding the Fourth Proportional to 12,706.26, 19,053.47 and 6,781.54

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Solution

The fourth proportional to 12,706.26, 19,053.47 and 6,781.54 is: 10,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,706.26 : 19,053.47 = 6,781.54 : x
  2. Step 2: Convert to fraction form
    12,706.26/19,053.47 = 6,781.54/x
  3. Step 3: Cross multiply
    12,706.26x = 19,053.47 × 6,781.54
  4. Step 4: Simplify right side
    12,706.26x = 129,211,787.40
  5. Step 5: Solve for x
    x = 129,211,787.40/12,706.26
  6. Step 6: Final answer
    x = 10,169.14

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1.5x scale

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.