Home / 7,485.67-11,221.35-2,551.87

Finding the Fourth Proportional to 7,485.67, 11,221.35 and 2,551.87

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Solution

The fourth proportional to 7,485.67, 11,221.35 and 2,551.87 is: 3,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.67 : 11,221.35 = 2,551.87 : x
  2. Step 2: Convert to fraction form
    7,485.67/11,221.35 = 2,551.87/x
  3. Step 3: Cross multiply
    7,485.67x = 11,221.35 × 2,551.87
  4. Step 4: Simplify right side
    7,485.67x = 28,635,426.42
  5. Step 5: Solve for x
    x = 28,635,426.42/7,485.67
  6. Step 6: Final answer
    x = 3,825.37

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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.