Home / 13,325.10-19,990.49-3,965.15

Finding the Fourth Proportional to 13,325.10, 19,990.49 and 3,965.15

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Solution

The fourth proportional to 13,325.10, 19,990.49 and 3,965.15 is: 5,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.10 : 19,990.49 = 3,965.15 : x
  2. Step 2: Convert to fraction form
    13,325.10/19,990.49 = 3,965.15/x
  3. Step 3: Cross multiply
    13,325.10x = 19,990.49 × 3,965.15
  4. Step 4: Simplify right side
    13,325.10x = 79,265,171.65
  5. Step 5: Solve for x
    x = 79,265,171.65/13,325.10
  6. Step 6: Final answer
    x = 5,948.56

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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.