Home / 10,775.12-16,162.65-3,380.14

Finding the Fourth Proportional to 10,775.12, 16,162.65 and 3,380.14

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Solution

The fourth proportional to 10,775.12, 16,162.65 and 3,380.14 is: 5,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,775.12 : 16,162.65 = 3,380.14 : x
  2. Step 2: Convert to fraction form
    10,775.12/16,162.65 = 3,380.14/x
  3. Step 3: Cross multiply
    10,775.12x = 16,162.65 × 3,380.14
  4. Step 4: Simplify right side
    10,775.12x = 54,631,987.81
  5. Step 5: Solve for x
    x = 54,631,987.81/10,775.12
  6. Step 6: Final answer
    x = 5,070.20

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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.