Home / 9,363.58-12,921.09-5,171.50

Finding the Fourth Proportional to 9,363.58, 12,921.09 and 5,171.50

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Solution

The fourth proportional to 9,363.58, 12,921.09 and 5,171.50 is: 7,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.58 : 12,921.09 = 5,171.50 : x
  2. Step 2: Convert to fraction form
    9,363.58/12,921.09 = 5,171.50/x
  3. Step 3: Cross multiply
    9,363.58x = 12,921.09 × 5,171.50
  4. Step 4: Simplify right side
    9,363.58x = 66,821,416.94
  5. Step 5: Solve for x
    x = 66,821,416.94/9,363.58
  6. Step 6: Final answer
    x = 7,136.31

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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.