Home / 12,741.64-19,113.30-3,381.53

Finding the Fourth Proportional to 12,741.64, 19,113.30 and 3,381.53

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Solution

The fourth proportional to 12,741.64, 19,113.30 and 3,381.53 is: 5,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.64 : 19,113.30 = 3,381.53 : x
  2. Step 2: Convert to fraction form
    12,741.64/19,113.30 = 3,381.53/x
  3. Step 3: Cross multiply
    12,741.64x = 19,113.30 × 3,381.53
  4. Step 4: Simplify right side
    12,741.64x = 64,632,101.78
  5. Step 5: Solve for x
    x = 64,632,101.78/12,741.64
  6. Step 6: Final answer
    x = 5,072.51

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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.