Home / 10,926.20-16,390.14-3,907.70

Finding the Fourth Proportional to 10,926.20, 16,390.14 and 3,907.70

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Solution

The fourth proportional to 10,926.20, 16,390.14 and 3,907.70 is: 5,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.20 : 16,390.14 = 3,907.70 : x
  2. Step 2: Convert to fraction form
    10,926.20/16,390.14 = 3,907.70/x
  3. Step 3: Cross multiply
    10,926.20x = 16,390.14 × 3,907.70
  4. Step 4: Simplify right side
    10,926.20x = 64,047,750.08
  5. Step 5: Solve for x
    x = 64,047,750.08/10,926.20
  6. Step 6: Final answer
    x = 5,861.85

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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.