Home / 11,505.40-17,252.34-4,108.78

Finding the Fourth Proportional to 11,505.40, 17,252.34 and 4,108.78

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Solution

The fourth proportional to 11,505.40, 17,252.34 and 4,108.78 is: 6,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.40 : 17,252.34 = 4,108.78 : x
  2. Step 2: Convert to fraction form
    11,505.40/17,252.34 = 4,108.78/x
  3. Step 3: Cross multiply
    11,505.40x = 17,252.34 × 4,108.78
  4. Step 4: Simplify right side
    11,505.40x = 70,886,069.55
  5. Step 5: Solve for x
    x = 70,886,069.55/11,505.40
  6. Step 6: Final answer
    x = 6,161.11

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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.