Home / 10,628.10-15,942.15-5,379.30

Finding the Fourth Proportional to 10,628.10, 15,942.15 and 5,379.30

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Solution

The fourth proportional to 10,628.10, 15,942.15 and 5,379.30 is: 8,068.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.10 : 15,942.15 = 5,379.30 : x
  2. Step 2: Convert to fraction form
    10,628.10/15,942.15 = 5,379.30/x
  3. Step 3: Cross multiply
    10,628.10x = 15,942.15 × 5,379.30
  4. Step 4: Simplify right side
    10,628.10x = 85,757,607.50
  5. Step 5: Solve for x
    x = 85,757,607.50/10,628.10
  6. Step 6: Final answer
    x = 8,068.95

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Similar ratio
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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.