Home / 12,784.68-19,175.76-4,019.36

Finding the Fourth Proportional to 12,784.68, 19,175.76 and 4,019.36

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Solution

The fourth proportional to 12,784.68, 19,175.76 and 4,019.36 is: 6,028.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784.68 : 19,175.76 = 4,019.36 : x
  2. Step 2: Convert to fraction form
    12,784.68/19,175.76 = 4,019.36/x
  3. Step 3: Cross multiply
    12,784.68x = 19,175.76 × 4,019.36
  4. Step 4: Simplify right side
    12,784.68x = 77,074,282.71
  5. Step 5: Solve for x
    x = 77,074,282.71/12,784.68
  6. Step 6: Final answer
    x = 6,028.64

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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.