Home / 10,720.49-16,080.73-3,790.13

Finding the Fourth Proportional to 10,720.49, 16,080.73 and 3,790.13

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Solution

The fourth proportional to 10,720.49, 16,080.73 and 3,790.13 is: 5,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.49 : 16,080.73 = 3,790.13 : x
  2. Step 2: Convert to fraction form
    10,720.49/16,080.73 = 3,790.13/x
  3. Step 3: Cross multiply
    10,720.49x = 16,080.73 × 3,790.13
  4. Step 4: Simplify right side
    10,720.49x = 60,947,967.32
  5. Step 5: Solve for x
    x = 60,947,967.32/10,720.49
  6. Step 6: Final answer
    x = 5,685.19

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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.