Home / 12,866.51-19,297.47-6,940.64

Finding the Fourth Proportional to 12,866.51, 19,297.47 and 6,940.64

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Solution

The fourth proportional to 12,866.51, 19,297.47 and 6,940.64 is: 10,409.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.51 : 19,297.47 = 6,940.64 : x
  2. Step 2: Convert to fraction form
    12,866.51/19,297.47 = 6,940.64/x
  3. Step 3: Cross multiply
    12,866.51x = 19,297.47 × 6,940.64
  4. Step 4: Simplify right side
    12,866.51x = 133,936,792.18
  5. Step 5: Solve for x
    x = 133,936,792.18/12,866.51
  6. Step 6: Final answer
    x = 10,409.72

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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.