Home / 12,754.72-19,132.40-3,521.44

Finding the Fourth Proportional to 12,754.72, 19,132.40 and 3,521.44

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Solution

The fourth proportional to 12,754.72, 19,132.40 and 3,521.44 is: 5,282.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.72 : 19,132.40 = 3,521.44 : x
  2. Step 2: Convert to fraction form
    12,754.72/19,132.40 = 3,521.44/x
  3. Step 3: Cross multiply
    12,754.72x = 19,132.40 × 3,521.44
  4. Step 4: Simplify right side
    12,754.72x = 67,373,598.66
  5. Step 5: Solve for x
    x = 67,373,598.66/12,754.72
  6. Step 6: Final answer
    x = 5,282.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.