Home / 13,328.82-19,991.80-7,082.19

Finding the Fourth Proportional to 13,328.82, 19,991.80 and 7,082.19

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Solution

The fourth proportional to 13,328.82, 19,991.80 and 7,082.19 is: 10,622.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.82 : 19,991.80 = 7,082.19 : x
  2. Step 2: Convert to fraction form
    13,328.82/19,991.80 = 7,082.19/x
  3. Step 3: Cross multiply
    13,328.82x = 19,991.80 × 7,082.19
  4. Step 4: Simplify right side
    13,328.82x = 141,585,708.34
  5. Step 5: Solve for x
    x = 141,585,708.34/13,328.82
  6. Step 6: Final answer
    x = 10,622.52

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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.