Home / 13,776.88-19,027.68-10,670.80

Finding the Fourth Proportional to 13,776.88, 19,027.68 and 10,670.80

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Solution

The fourth proportional to 13,776.88, 19,027.68 and 10,670.80 is: 14,737.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.88 : 19,027.68 = 10,670.80 : x
  2. Step 2: Convert to fraction form
    13,776.88/19,027.68 = 10,670.80/x
  3. Step 3: Cross multiply
    13,776.88x = 19,027.68 × 10,670.80
  4. Step 4: Simplify right side
    13,776.88x = 203,040,567.74
  5. Step 5: Solve for x
    x = 203,040,567.74/13,776.88
  6. Step 6: Final answer
    x = 14,737.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.