Home / 12,933.45-19,400.29-7,086.87

Finding the Fourth Proportional to 12,933.45, 19,400.29 and 7,086.87

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Solution

The fourth proportional to 12,933.45, 19,400.29 and 7,086.87 is: 10,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.45 : 19,400.29 = 7,086.87 : x
  2. Step 2: Convert to fraction form
    12,933.45/19,400.29 = 7,086.87/x
  3. Step 3: Cross multiply
    12,933.45x = 19,400.29 × 7,086.87
  4. Step 4: Simplify right side
    12,933.45x = 137,487,315.48
  5. Step 5: Solve for x
    x = 137,487,315.48/12,933.45
  6. Step 6: Final answer
    x = 10,630.37

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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.