Home / 12,731.68-19,097.60-3,966.40

Finding the Fourth Proportional to 12,731.68, 19,097.60 and 3,966.40

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Solution

The fourth proportional to 12,731.68, 19,097.60 and 3,966.40 is: 5,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.68 : 19,097.60 = 3,966.40 : x
  2. Step 2: Convert to fraction form
    12,731.68/19,097.60 = 3,966.40/x
  3. Step 3: Cross multiply
    12,731.68x = 19,097.60 × 3,966.40
  4. Step 4: Simplify right side
    12,731.68x = 75,748,720.64
  5. Step 5: Solve for x
    x = 75,748,720.64/12,731.68
  6. Step 6: Final answer
    x = 5,949.62

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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.