Home / 10,669.11-16,017.53-8,205.68

Finding the Fourth Proportional to 10,669.11, 16,017.53 and 8,205.68

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Solution

The fourth proportional to 10,669.11, 16,017.53 and 8,205.68 is: 12,319.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.11 : 16,017.53 = 8,205.68 : x
  2. Step 2: Convert to fraction form
    10,669.11/16,017.53 = 8,205.68/x
  3. Step 3: Cross multiply
    10,669.11x = 16,017.53 × 8,205.68
  4. Step 4: Simplify right side
    10,669.11x = 131,434,604.45
  5. Step 5: Solve for x
    x = 131,434,604.45/10,669.11
  6. Step 6: Final answer
    x = 12,319.17

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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.