Home / 12,885.82-19,330.41-3,652.06

Finding the Fourth Proportional to 12,885.82, 19,330.41 and 3,652.06

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Solution

The fourth proportional to 12,885.82, 19,330.41 and 3,652.06 is: 5,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.82 : 19,330.41 = 3,652.06 : x
  2. Step 2: Convert to fraction form
    12,885.82/19,330.41 = 3,652.06/x
  3. Step 3: Cross multiply
    12,885.82x = 19,330.41 × 3,652.06
  4. Step 4: Simplify right side
    12,885.82x = 70,595,817.14
  5. Step 5: Solve for x
    x = 70,595,817.14/12,885.82
  6. Step 6: Final answer
    x = 5,478.57

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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.