Home / 10,928.08-16,392-3,136.90

Finding the Fourth Proportional to 10,928.08, 16,392 and 3,136.90

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Solution

The fourth proportional to 10,928.08, 16,392 and 3,136.90 is: 4,705.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.08 : 16,392 = 3,136.90 : x
  2. Step 2: Convert to fraction form
    10,928.08/16,392 = 3,136.90/x
  3. Step 3: Cross multiply
    10,928.08x = 16,392 × 3,136.90
  4. Step 4: Simplify right side
    10,928.08x = 51,420,064.80
  5. Step 5: Solve for x
    x = 51,420,064.80/10,928.08
  6. Step 6: Final answer
    x = 4,705.32

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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.