Home / 12,876.27-19,315.43-4,111.19

Finding the Fourth Proportional to 12,876.27, 19,315.43 and 4,111.19

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Solution

The fourth proportional to 12,876.27, 19,315.43 and 4,111.19 is: 6,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.27 : 19,315.43 = 4,111.19 : x
  2. Step 2: Convert to fraction form
    12,876.27/19,315.43 = 4,111.19/x
  3. Step 3: Cross multiply
    12,876.27x = 19,315.43 × 4,111.19
  4. Step 4: Simplify right side
    12,876.27x = 79,409,373.38
  5. Step 5: Solve for x
    x = 79,409,373.38/12,876.27
  6. Step 6: Final answer
    x = 6,167.11

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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.