Home / 13,188.45-19,794.51-6,618.32

Finding the Fourth Proportional to 13,188.45, 19,794.51 and 6,618.32

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Solution

The fourth proportional to 13,188.45, 19,794.51 and 6,618.32 is: 9,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.45 : 19,794.51 = 6,618.32 : x
  2. Step 2: Convert to fraction form
    13,188.45/19,794.51 = 6,618.32/x
  3. Step 3: Cross multiply
    13,188.45x = 19,794.51 × 6,618.32
  4. Step 4: Simplify right side
    13,188.45x = 131,006,401.42
  5. Step 5: Solve for x
    x = 131,006,401.42/13,188.45
  6. Step 6: Final answer
    x = 9,933.42

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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.