Home / 12,741.63-19,113.30-3,381.51

Finding the Fourth Proportional to 12,741.63, 19,113.30 and 3,381.51

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Solution

The fourth proportional to 12,741.63, 19,113.30 and 3,381.51 is: 5,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.63 : 19,113.30 = 3,381.51 : x
  2. Step 2: Convert to fraction form
    12,741.63/19,113.30 = 3,381.51/x
  3. Step 3: Cross multiply
    12,741.63x = 19,113.30 × 3,381.51
  4. Step 4: Simplify right side
    12,741.63x = 64,631,815.08
  5. Step 5: Solve for x
    x = 64,631,815.08/12,741.63
  6. Step 6: Final answer
    x = 5,072.49

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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.