Home / 10,980.12-16,486.58-10,816.09

Finding the Fourth Proportional to 10,980.12, 16,486.58 and 10,816.09

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Solution

The fourth proportional to 10,980.12, 16,486.58 and 10,816.09 is: 16,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.12 : 16,486.58 = 10,816.09 : x
  2. Step 2: Convert to fraction form
    10,980.12/16,486.58 = 10,816.09/x
  3. Step 3: Cross multiply
    10,980.12x = 16,486.58 × 10,816.09
  4. Step 4: Simplify right side
    10,980.12x = 178,320,340.16
  5. Step 5: Solve for x
    x = 178,320,340.16/10,980.12
  6. Step 6: Final answer
    x = 16,240.30

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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.