Home / 11,909.48-16,434.99-6,604.31

Finding the Fourth Proportional to 11,909.48, 16,434.99 and 6,604.31

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Solution

The fourth proportional to 11,909.48, 16,434.99 and 6,604.31 is: 9,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.48 : 16,434.99 = 6,604.31 : x
  2. Step 2: Convert to fraction form
    11,909.48/16,434.99 = 6,604.31/x
  3. Step 3: Cross multiply
    11,909.48x = 16,434.99 × 6,604.31
  4. Step 4: Simplify right side
    11,909.48x = 108,541,768.81
  5. Step 5: Solve for x
    x = 108,541,768.81/11,909.48
  6. Step 6: Final answer
    x = 9,113.90

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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.