Home / 11,130.80-16,688.10-4,553.60

Finding the Fourth Proportional to 11,130.80, 16,688.10 and 4,553.60

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Solution

The fourth proportional to 11,130.80, 16,688.10 and 4,553.60 is: 6,827.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.80 : 16,688.10 = 4,553.60 : x
  2. Step 2: Convert to fraction form
    11,130.80/16,688.10 = 4,553.60/x
  3. Step 3: Cross multiply
    11,130.80x = 16,688.10 × 4,553.60
  4. Step 4: Simplify right side
    11,130.80x = 75,990,932.16
  5. Step 5: Solve for x
    x = 75,990,932.16/11,130.80
  6. Step 6: Final answer
    x = 6,827.09

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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.