Home / 10,909.29-16,364.88-3,011.81

Finding the Fourth Proportional to 10,909.29, 16,364.88 and 3,011.81

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Solution

The fourth proportional to 10,909.29, 16,364.88 and 3,011.81 is: 4,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.29 : 16,364.88 = 3,011.81 : x
  2. Step 2: Convert to fraction form
    10,909.29/16,364.88 = 3,011.81/x
  3. Step 3: Cross multiply
    10,909.29x = 16,364.88 × 3,011.81
  4. Step 4: Simplify right side
    10,909.29x = 49,287,909.23
  5. Step 5: Solve for x
    x = 49,287,909.23/10,909.29
  6. Step 6: Final answer
    x = 4,517.98

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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.