Home / 12,731.91-19,097.87-3,967.53

Finding the Fourth Proportional to 12,731.91, 19,097.87 and 3,967.53

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Solution

The fourth proportional to 12,731.91, 19,097.87 and 3,967.53 is: 5,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.91 : 19,097.87 = 3,967.53 : x
  2. Step 2: Convert to fraction form
    12,731.91/19,097.87 = 3,967.53/x
  3. Step 3: Cross multiply
    12,731.91x = 19,097.87 × 3,967.53
  4. Step 4: Simplify right side
    12,731.91x = 75,771,352.32
  5. Step 5: Solve for x
    x = 75,771,352.32/12,731.91
  6. Step 6: Final answer
    x = 5,951.30

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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.