Home / 12,851.25-19,168.85-11,670.09

Finding the Fourth Proportional to 12,851.25, 19,168.85 and 11,670.09

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Solution

The fourth proportional to 12,851.25, 19,168.85 and 11,670.09 is: 17,407.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851.25 : 19,168.85 = 11,670.09 : x
  2. Step 2: Convert to fraction form
    12,851.25/19,168.85 = 11,670.09/x
  3. Step 3: Cross multiply
    12,851.25x = 19,168.85 × 11,670.09
  4. Step 4: Simplify right side
    12,851.25x = 223,702,204.70
  5. Step 5: Solve for x
    x = 223,702,204.70/12,851.25
  6. Step 6: Final answer
    x = 17,407.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.