Home / 14,004.40-19,327.12-7,716.80

Finding the Fourth Proportional to 14,004.40, 19,327.12 and 7,716.80

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Solution

The fourth proportional to 14,004.40, 19,327.12 and 7,716.80 is: 10,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.40 : 19,327.12 = 7,716.80 : x
  2. Step 2: Convert to fraction form
    14,004.40/19,327.12 = 7,716.80/x
  3. Step 3: Cross multiply
    14,004.40x = 19,327.12 × 7,716.80
  4. Step 4: Simplify right side
    14,004.40x = 149,143,519.62
  5. Step 5: Solve for x
    x = 149,143,519.62/14,004.40
  6. Step 6: Final answer
    x = 10,649.76

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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.