Home / 12,713.64-19,072.66-4,279.34

Finding the Fourth Proportional to 12,713.64, 19,072.66 and 4,279.34

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Solution

The fourth proportional to 12,713.64, 19,072.66 and 4,279.34 is: 6,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.64 : 19,072.66 = 4,279.34 : x
  2. Step 2: Convert to fraction form
    12,713.64/19,072.66 = 4,279.34/x
  3. Step 3: Cross multiply
    12,713.64x = 19,072.66 × 4,279.34
  4. Step 4: Simplify right side
    12,713.64x = 81,618,280.08
  5. Step 5: Solve for x
    x = 81,618,280.08/12,713.64
  6. Step 6: Final answer
    x = 6,419.74

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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.