Home / 12,754.64-19,133.40-3,987.92

Finding the Fourth Proportional to 12,754.64, 19,133.40 and 3,987.92

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Solution

The fourth proportional to 12,754.64, 19,133.40 and 3,987.92 is: 5,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.64 : 19,133.40 = 3,987.92 : x
  2. Step 2: Convert to fraction form
    12,754.64/19,133.40 = 3,987.92/x
  3. Step 3: Cross multiply
    12,754.64x = 19,133.40 × 3,987.92
  4. Step 4: Simplify right side
    12,754.64x = 76,302,468.53
  5. Step 5: Solve for x
    x = 76,302,468.53/12,754.64
  6. Step 6: Final answer
    x = 5,982.33

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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.