Home / 11,211.28-16,790.28-5,647.12

Finding the Fourth Proportional to 11,211.28, 16,790.28 and 5,647.12

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Solution

The fourth proportional to 11,211.28, 16,790.28 and 5,647.12 is: 8,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.28 : 16,790.28 = 5,647.12 : x
  2. Step 2: Convert to fraction form
    11,211.28/16,790.28 = 5,647.12/x
  3. Step 3: Cross multiply
    11,211.28x = 16,790.28 × 5,647.12
  4. Step 4: Simplify right side
    11,211.28x = 94,816,725.99
  5. Step 5: Solve for x
    x = 94,816,725.99/11,211.28
  6. Step 6: Final answer
    x = 8,457.26

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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.