Home / 9,982.56-13,777.20-6,261.60

Finding the Fourth Proportional to 9,982.56, 13,777.20 and 6,261.60

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Solution

The fourth proportional to 9,982.56, 13,777.20 and 6,261.60 is: 8,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.56 : 13,777.20 = 6,261.60 : x
  2. Step 2: Convert to fraction form
    9,982.56/13,777.20 = 6,261.60/x
  3. Step 3: Cross multiply
    9,982.56x = 13,777.20 × 6,261.60
  4. Step 4: Simplify right side
    9,982.56x = 86,267,315.52
  5. Step 5: Solve for x
    x = 86,267,315.52/9,982.56
  6. Step 6: Final answer
    x = 8,641.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.