Home / 12,467.09-17,167.86-11,140.31

Finding the Fourth Proportional to 12,467.09, 17,167.86 and 11,140.31

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Solution

The fourth proportional to 12,467.09, 17,167.86 and 11,140.31 is: 15,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467.09 : 17,167.86 = 11,140.31 : x
  2. Step 2: Convert to fraction form
    12,467.09/17,167.86 = 11,140.31/x
  3. Step 3: Cross multiply
    12,467.09x = 17,167.86 × 11,140.31
  4. Step 4: Simplify right side
    12,467.09x = 191,255,196.60
  5. Step 5: Solve for x
    x = 191,255,196.60/12,467.09
  6. Step 6: Final answer
    x = 15,340.81

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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.