Home / 7,771.02-11,656.61-6,220.88

Finding the Fourth Proportional to 7,771.02, 11,656.61 and 6,220.88

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Solution

The fourth proportional to 7,771.02, 11,656.61 and 6,220.88 is: 9,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.02 : 11,656.61 = 6,220.88 : x
  2. Step 2: Convert to fraction form
    7,771.02/11,656.61 = 6,220.88/x
  3. Step 3: Cross multiply
    7,771.02x = 11,656.61 × 6,220.88
  4. Step 4: Simplify right side
    7,771.02x = 72,514,372.02
  5. Step 5: Solve for x
    x = 72,514,372.02/7,771.02
  6. Step 6: Final answer
    x = 9,331.38

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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.