Home / 12,875.27-17,728.37-11,272.96

Finding the Fourth Proportional to 12,875.27, 17,728.37 and 11,272.96

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Solution

The fourth proportional to 12,875.27, 17,728.37 and 11,272.96 is: 15,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.27 : 17,728.37 = 11,272.96 : x
  2. Step 2: Convert to fraction form
    12,875.27/17,728.37 = 11,272.96/x
  3. Step 3: Cross multiply
    12,875.27x = 17,728.37 × 11,272.96
  4. Step 4: Simplify right side
    12,875.27x = 199,851,117.23
  5. Step 5: Solve for x
    x = 199,851,117.23/12,875.27
  6. Step 6: Final answer
    x = 15,522.09

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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.