Home / 11,205.80-16,808.70-7,925.30

Finding the Fourth Proportional to 11,205.80, 16,808.70 and 7,925.30

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Solution

The fourth proportional to 11,205.80, 16,808.70 and 7,925.30 is: 11,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.80 : 16,808.70 = 7,925.30 : x
  2. Step 2: Convert to fraction form
    11,205.80/16,808.70 = 7,925.30/x
  3. Step 3: Cross multiply
    11,205.80x = 16,808.70 × 7,925.30
  4. Step 4: Simplify right side
    11,205.80x = 133,213,990.11
  5. Step 5: Solve for x
    x = 133,213,990.11/11,205.80
  6. Step 6: Final answer
    x = 11,887.95

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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.