Home / 10,720.62-16,051.21-8,080.13

Finding the Fourth Proportional to 10,720.62, 16,051.21 and 8,080.13

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Solution

The fourth proportional to 10,720.62, 16,051.21 and 8,080.13 is: 12,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.62 : 16,051.21 = 8,080.13 : x
  2. Step 2: Convert to fraction form
    10,720.62/16,051.21 = 8,080.13/x
  3. Step 3: Cross multiply
    10,720.62x = 16,051.21 × 8,080.13
  4. Step 4: Simplify right side
    10,720.62x = 129,695,863.46
  5. Step 5: Solve for x
    x = 129,695,863.46/10,720.62
  6. Step 6: Final answer
    x = 12,097.80

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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.