Home / 11,478.24-17,218.88-5,635.04

Finding the Fourth Proportional to 11,478.24, 17,218.88 and 5,635.04

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Solution

The fourth proportional to 11,478.24, 17,218.88 and 5,635.04 is: 8,453.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.24 : 17,218.88 = 5,635.04 : x
  2. Step 2: Convert to fraction form
    11,478.24/17,218.88 = 5,635.04/x
  3. Step 3: Cross multiply
    11,478.24x = 17,218.88 × 5,635.04
  4. Step 4: Simplify right side
    11,478.24x = 97,029,077.56
  5. Step 5: Solve for x
    x = 97,029,077.56/11,478.24
  6. Step 6: Final answer
    x = 8,453.31

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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.