Home / 10,921.14-16,379.00-4,680.44

Finding the Fourth Proportional to 10,921.14, 16,379.00 and 4,680.44

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Solution

The fourth proportional to 10,921.14, 16,379.00 and 4,680.44 is: 7,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.14 : 16,379.00 = 4,680.44 : x
  2. Step 2: Convert to fraction form
    10,921.14/16,379.00 = 4,680.44/x
  3. Step 3: Cross multiply
    10,921.14x = 16,379.00 × 4,680.44
  4. Step 4: Simplify right side
    10,921.14x = 76,660,956.01
  5. Step 5: Solve for x
    x = 76,660,956.01/10,921.14
  6. Step 6: Final answer
    x = 7,019.50

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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.