Home / 11,126.40-16,688.40-4,553.28

Finding the Fourth Proportional to 11,126.40, 16,688.40 and 4,553.28

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Solution

The fourth proportional to 11,126.40, 16,688.40 and 4,553.28 is: 6,829.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.40 : 16,688.40 = 4,553.28 : x
  2. Step 2: Convert to fraction form
    11,126.40/16,688.40 = 4,553.28/x
  3. Step 3: Cross multiply
    11,126.40x = 16,688.40 × 4,553.28
  4. Step 4: Simplify right side
    11,126.40x = 75,986,957.95
  5. Step 5: Solve for x
    x = 75,986,957.95/11,126.40
  6. Step 6: Final answer
    x = 6,829.43

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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.