Home / 7,257.20-10,885.80-5,507.60

Finding the Fourth Proportional to 7,257.20, 10,885.80 and 5,507.60

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Solution

The fourth proportional to 7,257.20, 10,885.80 and 5,507.60 is: 8,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.20 : 10,885.80 = 5,507.60 : x
  2. Step 2: Convert to fraction form
    7,257.20/10,885.80 = 5,507.60/x
  3. Step 3: Cross multiply
    7,257.20x = 10,885.80 × 5,507.60
  4. Step 4: Simplify right side
    7,257.20x = 59,954,632.08
  5. Step 5: Solve for x
    x = 59,954,632.08/7,257.20
  6. Step 6: Final answer
    x = 8,261.40

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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.