Home / 7,427.40-11,151.90-5,245.80

Finding the Fourth Proportional to 7,427.40, 11,151.90 and 5,245.80

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Solution

The fourth proportional to 7,427.40, 11,151.90 and 5,245.80 is: 7,876.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.40 : 11,151.90 = 5,245.80 : x
  2. Step 2: Convert to fraction form
    7,427.40/11,151.90 = 5,245.80/x
  3. Step 3: Cross multiply
    7,427.40x = 11,151.90 × 5,245.80
  4. Step 4: Simplify right side
    7,427.40x = 58,500,637.02
  5. Step 5: Solve for x
    x = 58,500,637.02/7,427.40
  6. Step 6: Final answer
    x = 7,876.33

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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.