Home / 10,720.80-16,082.28-3,701.28

Finding the Fourth Proportional to 10,720.80, 16,082.28 and 3,701.28

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Solution

The fourth proportional to 10,720.80, 16,082.28 and 3,701.28 is: 5,552.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.80 : 16,082.28 = 3,701.28 : x
  2. Step 2: Convert to fraction form
    10,720.80/16,082.28 = 3,701.28/x
  3. Step 3: Cross multiply
    10,720.80x = 16,082.28 × 3,701.28
  4. Step 4: Simplify right side
    10,720.80x = 59,525,021.32
  5. Step 5: Solve for x
    x = 59,525,021.32/10,720.80
  6. Step 6: Final answer
    x = 5,552.29

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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.