Home / 10,977.22-15,145.87-6,500.75

Finding the Fourth Proportional to 10,977.22, 15,145.87 and 6,500.75

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Solution

The fourth proportional to 10,977.22, 15,145.87 and 6,500.75 is: 8,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.22 : 15,145.87 = 6,500.75 : x
  2. Step 2: Convert to fraction form
    10,977.22/15,145.87 = 6,500.75/x
  3. Step 3: Cross multiply
    10,977.22x = 15,145.87 × 6,500.75
  4. Step 4: Simplify right side
    10,977.22x = 98,459,481.90
  5. Step 5: Solve for x
    x = 98,459,481.90/10,977.22
  6. Step 6: Final answer
    x = 8,969.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.