Home / 12,864.87-19,298.69-4,097.75

Finding the Fourth Proportional to 12,864.87, 19,298.69 and 4,097.75

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Solution

The fourth proportional to 12,864.87, 19,298.69 and 4,097.75 is: 6,147.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.87 : 19,298.69 = 4,097.75 : x
  2. Step 2: Convert to fraction form
    12,864.87/19,298.69 = 4,097.75/x
  3. Step 3: Cross multiply
    12,864.87x = 19,298.69 × 4,097.75
  4. Step 4: Simplify right side
    12,864.87x = 79,081,089.97
  5. Step 5: Solve for x
    x = 79,081,089.97/12,864.87
  6. Step 6: Final answer
    x = 6,147.06

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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.