Home / 11,909.65-16,434.24-6,604.45

Finding the Fourth Proportional to 11,909.65, 16,434.24 and 6,604.45

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Solution

The fourth proportional to 11,909.65, 16,434.24 and 6,604.45 is: 9,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.65 : 16,434.24 = 6,604.45 : x
  2. Step 2: Convert to fraction form
    11,909.65/16,434.24 = 6,604.45/x
  3. Step 3: Cross multiply
    11,909.65x = 16,434.24 × 6,604.45
  4. Step 4: Simplify right side
    11,909.65x = 108,539,116.37
  5. Step 5: Solve for x
    x = 108,539,116.37/11,909.65
  6. Step 6: Final answer
    x = 9,113.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.