Home / 12,759.05-19,119.14-6,518.81

Finding the Fourth Proportional to 12,759.05, 19,119.14 and 6,518.81

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Solution

The fourth proportional to 12,759.05, 19,119.14 and 6,518.81 is: 9,768.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.05 : 19,119.14 = 6,518.81 : x
  2. Step 2: Convert to fraction form
    12,759.05/19,119.14 = 6,518.81/x
  3. Step 3: Cross multiply
    12,759.05x = 19,119.14 × 6,518.81
  4. Step 4: Simplify right side
    12,759.05x = 124,634,008.43
  5. Step 5: Solve for x
    x = 124,634,008.43/12,759.05
  6. Step 6: Final answer
    x = 9,768.28

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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.