Home / 11,103.40-16,655.10-7,166.80

Finding the Fourth Proportional to 11,103.40, 16,655.10 and 7,166.80

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Solution

The fourth proportional to 11,103.40, 16,655.10 and 7,166.80 is: 10,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.40 : 16,655.10 = 7,166.80 : x
  2. Step 2: Convert to fraction form
    11,103.40/16,655.10 = 7,166.80/x
  3. Step 3: Cross multiply
    11,103.40x = 16,655.10 × 7,166.80
  4. Step 4: Simplify right side
    11,103.40x = 119,363,770.68
  5. Step 5: Solve for x
    x = 119,363,770.68/11,103.40
  6. Step 6: Final answer
    x = 10,750.20

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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.