Home / 15,410.50-21,266.40-8,336.90

Finding the Fourth Proportional to 15,410.50, 21,266.40 and 8,336.90

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Solution

The fourth proportional to 15,410.50, 21,266.40 and 8,336.90 is: 11,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.50 : 21,266.40 = 8,336.90 : x
  2. Step 2: Convert to fraction form
    15,410.50/21,266.40 = 8,336.90/x
  3. Step 3: Cross multiply
    15,410.50x = 21,266.40 × 8,336.90
  4. Step 4: Simplify right side
    15,410.50x = 177,295,850.16
  5. Step 5: Solve for x
    x = 177,295,850.16/15,410.50
  6. Step 6: Final answer
    x = 11,504.88

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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.