Home / 13,329.36-19,989.12-4,561.92

Finding the Fourth Proportional to 13,329.36, 19,989.12 and 4,561.92

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Solution

The fourth proportional to 13,329.36, 19,989.12 and 4,561.92 is: 6,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.36 : 19,989.12 = 4,561.92 : x
  2. Step 2: Convert to fraction form
    13,329.36/19,989.12 = 4,561.92/x
  3. Step 3: Cross multiply
    13,329.36x = 19,989.12 × 4,561.92
  4. Step 4: Simplify right side
    13,329.36x = 91,188,766.31
  5. Step 5: Solve for x
    x = 91,188,766.31/13,329.36
  6. Step 6: Final answer
    x = 6,841.20

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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.