Home / 7,455.90-11,171.70-5,487.60

Finding the Fourth Proportional to 7,455.90, 11,171.70 and 5,487.60

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Solution

The fourth proportional to 7,455.90, 11,171.70 and 5,487.60 is: 8,222.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.90 : 11,171.70 = 5,487.60 : x
  2. Step 2: Convert to fraction form
    7,455.90/11,171.70 = 5,487.60/x
  3. Step 3: Cross multiply
    7,455.90x = 11,171.70 × 5,487.60
  4. Step 4: Simplify right side
    7,455.90x = 61,305,820.92
  5. Step 5: Solve for x
    x = 61,305,820.92/7,455.90
  6. Step 6: Final answer
    x = 8,222.46

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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.