Home / 12,710.28-19,077.84-6,879.36

Finding the Fourth Proportional to 12,710.28, 19,077.84 and 6,879.36

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Solution

The fourth proportional to 12,710.28, 19,077.84 and 6,879.36 is: 10,325.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.28 : 19,077.84 = 6,879.36 : x
  2. Step 2: Convert to fraction form
    12,710.28/19,077.84 = 6,879.36/x
  3. Step 3: Cross multiply
    12,710.28x = 19,077.84 × 6,879.36
  4. Step 4: Simplify right side
    12,710.28x = 131,243,329.38
  5. Step 5: Solve for x
    x = 131,243,329.38/12,710.28
  6. Step 6: Final answer
    x = 10,325.76

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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.