Home / 10,815.08-16,217.58-5,619.56

Finding the Fourth Proportional to 10,815.08, 16,217.58 and 5,619.56

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Solution

The fourth proportional to 10,815.08, 16,217.58 and 5,619.56 is: 8,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.08 : 16,217.58 = 5,619.56 : x
  2. Step 2: Convert to fraction form
    10,815.08/16,217.58 = 5,619.56/x
  3. Step 3: Cross multiply
    10,815.08x = 16,217.58 × 5,619.56
  4. Step 4: Simplify right side
    10,815.08x = 91,135,663.86
  5. Step 5: Solve for x
    x = 91,135,663.86/10,815.08
  6. Step 6: Final answer
    x = 8,426.72

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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.