Home / 12,776.75-19,168.21-4,011.66

Finding the Fourth Proportional to 12,776.75, 19,168.21 and 4,011.66

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Solution

The fourth proportional to 12,776.75, 19,168.21 and 4,011.66 is: 6,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.75 : 19,168.21 = 4,011.66 : x
  2. Step 2: Convert to fraction form
    12,776.75/19,168.21 = 4,011.66/x
  3. Step 3: Cross multiply
    12,776.75x = 19,168.21 × 4,011.66
  4. Step 4: Simplify right side
    12,776.75x = 76,896,331.30
  5. Step 5: Solve for x
    x = 76,896,331.30/12,776.75
  6. Step 6: Final answer
    x = 6,018.46

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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.