Home / 12,887.36-19,327.88-3,527.40

Finding the Fourth Proportional to 12,887.36, 19,327.88 and 3,527.40

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Solution

The fourth proportional to 12,887.36, 19,327.88 and 3,527.40 is: 5,290.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.36 : 19,327.88 = 3,527.40 : x
  2. Step 2: Convert to fraction form
    12,887.36/19,327.88 = 3,527.40/x
  3. Step 3: Cross multiply
    12,887.36x = 19,327.88 × 3,527.40
  4. Step 4: Simplify right side
    12,887.36x = 68,177,163.91
  5. Step 5: Solve for x
    x = 68,177,163.91/12,887.36
  6. Step 6: Final answer
    x = 5,290.24

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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.