Home / 12,866.82-19,386.72-11,635.62

Finding the Fourth Proportional to 12,866.82, 19,386.72 and 11,635.62

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Solution

The fourth proportional to 12,866.82, 19,386.72 and 11,635.62 is: 17,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.82 : 19,386.72 = 11,635.62 : x
  2. Step 2: Convert to fraction form
    12,866.82/19,386.72 = 11,635.62/x
  3. Step 3: Cross multiply
    12,866.82x = 19,386.72 × 11,635.62
  4. Step 4: Simplify right side
    12,866.82x = 225,576,448.79
  5. Step 5: Solve for x
    x = 225,576,448.79/12,866.82
  6. Step 6: Final answer
    x = 17,531.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.