Home / 9,150.98-13,731.64-4,220.62

Finding the Fourth Proportional to 9,150.98, 13,731.64 and 4,220.62

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Solution

The fourth proportional to 9,150.98, 13,731.64 and 4,220.62 is: 6,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,150.98 : 13,731.64 = 4,220.62 : x
  2. Step 2: Convert to fraction form
    9,150.98/13,731.64 = 4,220.62/x
  3. Step 3: Cross multiply
    9,150.98x = 13,731.64 × 4,220.62
  4. Step 4: Simplify right side
    9,150.98x = 57,955,989.54
  5. Step 5: Solve for x
    x = 57,955,989.54/9,150.98
  6. Step 6: Final answer
    x = 6,333.31

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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.