Home / 12,781.68-19,171.26-4,016.36

Finding the Fourth Proportional to 12,781.68, 19,171.26 and 4,016.36

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Solution

The fourth proportional to 12,781.68, 19,171.26 and 4,016.36 is: 6,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.68 : 19,171.26 = 4,016.36 : x
  2. Step 2: Convert to fraction form
    12,781.68/19,171.26 = 4,016.36/x
  3. Step 3: Cross multiply
    12,781.68x = 19,171.26 × 4,016.36
  4. Step 4: Simplify right side
    12,781.68x = 76,998,681.81
  5. Step 5: Solve for x
    x = 76,998,681.81/12,781.68
  6. Step 6: Final answer
    x = 6,024.14

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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.