Home / 11,838.72-17,752.28-6,909.60

Finding the Fourth Proportional to 11,838.72, 17,752.28 and 6,909.60

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Solution

The fourth proportional to 11,838.72, 17,752.28 and 6,909.60 is: 10,361.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.72 : 17,752.28 = 6,909.60 : x
  2. Step 2: Convert to fraction form
    11,838.72/17,752.28 = 6,909.60/x
  3. Step 3: Cross multiply
    11,838.72x = 17,752.28 × 6,909.60
  4. Step 4: Simplify right side
    11,838.72x = 122,661,153.89
  5. Step 5: Solve for x
    x = 122,661,153.89/11,838.72
  6. Step 6: Final answer
    x = 10,361.01

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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.