Home / 10,809.45-16,184.85-5,604.39

Finding the Fourth Proportional to 10,809.45, 16,184.85 and 5,604.39

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Solution

The fourth proportional to 10,809.45, 16,184.85 and 5,604.39 is: 8,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.45 : 16,184.85 = 5,604.39 : x
  2. Step 2: Convert to fraction form
    10,809.45/16,184.85 = 5,604.39/x
  3. Step 3: Cross multiply
    10,809.45x = 16,184.85 × 5,604.39
  4. Step 4: Simplify right side
    10,809.45x = 90,706,130.57
  5. Step 5: Solve for x
    x = 90,706,130.57/10,809.45
  6. Step 6: Final answer
    x = 8,391.38

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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.