Home / 10,950.83-15,107.64-8,086.40

Finding the Fourth Proportional to 10,950.83, 15,107.64 and 8,086.40

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Solution

The fourth proportional to 10,950.83, 15,107.64 and 8,086.40 is: 11,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,950.83 : 15,107.64 = 8,086.40 : x
  2. Step 2: Convert to fraction form
    10,950.83/15,107.64 = 8,086.40/x
  3. Step 3: Cross multiply
    10,950.83x = 15,107.64 × 8,086.40
  4. Step 4: Simplify right side
    10,950.83x = 122,166,344.56
  5. Step 5: Solve for x
    x = 122,166,344.56/10,950.83
  6. Step 6: Final answer
    x = 11,155.90

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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.