Home / 13,950.79-19,249.10-8,287.45

Finding the Fourth Proportional to 13,950.79, 19,249.10 and 8,287.45

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Solution

The fourth proportional to 13,950.79, 19,249.10 and 8,287.45 is: 11,434.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.79 : 19,249.10 = 8,287.45 : x
  2. Step 2: Convert to fraction form
    13,950.79/19,249.10 = 8,287.45/x
  3. Step 3: Cross multiply
    13,950.79x = 19,249.10 × 8,287.45
  4. Step 4: Simplify right side
    13,950.79x = 159,525,912.36
  5. Step 5: Solve for x
    x = 159,525,912.36/13,950.79
  6. Step 6: Final answer
    x = 11,434.90

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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.