Home / 15,190.20-20,962.80-8,475.84

Finding the Fourth Proportional to 15,190.20, 20,962.80 and 8,475.84

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Solution

The fourth proportional to 15,190.20, 20,962.80 and 8,475.84 is: 11,696.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.20 : 20,962.80 = 8,475.84 : x
  2. Step 2: Convert to fraction form
    15,190.20/20,962.80 = 8,475.84/x
  3. Step 3: Cross multiply
    15,190.20x = 20,962.80 × 8,475.84
  4. Step 4: Simplify right side
    15,190.20x = 177,677,338.75
  5. Step 5: Solve for x
    x = 177,677,338.75/15,190.20
  6. Step 6: Final answer
    x = 11,696.84

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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.