Home / 7,415.16-11,128.02-5,472.60

Finding the Fourth Proportional to 7,415.16, 11,128.02 and 5,472.60

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Solution

The fourth proportional to 7,415.16, 11,128.02 and 5,472.60 is: 8,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.16 : 11,128.02 = 5,472.60 : x
  2. Step 2: Convert to fraction form
    7,415.16/11,128.02 = 5,472.60/x
  3. Step 3: Cross multiply
    7,415.16x = 11,128.02 × 5,472.60
  4. Step 4: Simplify right side
    7,415.16x = 60,899,202.25
  5. Step 5: Solve for x
    x = 60,899,202.25/7,415.16
  6. Step 6: Final answer
    x = 8,212.80

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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.