Home / 12,561.54-17,325.03-11,127.44

Finding the Fourth Proportional to 12,561.54, 17,325.03 and 11,127.44

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Solution

The fourth proportional to 12,561.54, 17,325.03 and 11,127.44 is: 15,347.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.54 : 17,325.03 = 11,127.44 : x
  2. Step 2: Convert to fraction form
    12,561.54/17,325.03 = 11,127.44/x
  3. Step 3: Cross multiply
    12,561.54x = 17,325.03 × 11,127.44
  4. Step 4: Simplify right side
    12,561.54x = 192,783,145.20
  5. Step 5: Solve for x
    x = 192,783,145.20/12,561.54
  6. Step 6: Final answer
    x = 15,347.09

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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.