Home / 11,909.50-17,859.79-9,563.74

Finding the Fourth Proportional to 11,909.50, 17,859.79 and 9,563.74

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Solution

The fourth proportional to 11,909.50, 17,859.79 and 9,563.74 is: 14,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.50 : 17,859.79 = 9,563.74 : x
  2. Step 2: Convert to fraction form
    11,909.50/17,859.79 = 9,563.74/x
  3. Step 3: Cross multiply
    11,909.50x = 17,859.79 × 9,563.74
  4. Step 4: Simplify right side
    11,909.50x = 170,806,388.01
  5. Step 5: Solve for x
    x = 170,806,388.01/11,909.50
  6. Step 6: Final answer
    x = 14,342.03

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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.