Home / 15,188.84-20,962.22-8,476.80

Finding the Fourth Proportional to 15,188.84, 20,962.22 and 8,476.80

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Solution

The fourth proportional to 15,188.84, 20,962.22 and 8,476.80 is: 11,698.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.84 : 20,962.22 = 8,476.80 : x
  2. Step 2: Convert to fraction form
    15,188.84/20,962.22 = 8,476.80/x
  3. Step 3: Cross multiply
    15,188.84x = 20,962.22 × 8,476.80
  4. Step 4: Simplify right side
    15,188.84x = 177,692,504.11
  5. Step 5: Solve for x
    x = 177,692,504.11/15,188.84
  6. Step 6: Final answer
    x = 11,698.89

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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.