Home / 11,229.50-15,384.40-10,808.91

Finding the Fourth Proportional to 11,229.50, 15,384.40 and 10,808.91

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Solution

The fourth proportional to 11,229.50, 15,384.40 and 10,808.91 is: 14,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.50 : 15,384.40 = 10,808.91 : x
  2. Step 2: Convert to fraction form
    11,229.50/15,384.40 = 10,808.91/x
  3. Step 3: Cross multiply
    11,229.50x = 15,384.40 × 10,808.91
  4. Step 4: Simplify right side
    11,229.50x = 166,288,567.98
  5. Step 5: Solve for x
    x = 166,288,567.98/11,229.50
  6. Step 6: Final answer
    x = 14,808.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.