Home / 10,361.04-15,520.14-5,080.20

Finding the Fourth Proportional to 10,361.04, 15,520.14 and 5,080.20

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Solution

The fourth proportional to 10,361.04, 15,520.14 and 5,080.20 is: 7,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361.04 : 15,520.14 = 5,080.20 : x
  2. Step 2: Convert to fraction form
    10,361.04/15,520.14 = 5,080.20/x
  3. Step 3: Cross multiply
    10,361.04x = 15,520.14 × 5,080.20
  4. Step 4: Simplify right side
    10,361.04x = 78,845,415.23
  5. Step 5: Solve for x
    x = 78,845,415.23/10,361.04
  6. Step 6: Final answer
    x = 7,609.80

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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.