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Finding the Fourth Proportional to 7,548.80, 11,300.80 and 5,609.60

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Solution

The fourth proportional to 7,548.80, 11,300.80 and 5,609.60 is: 8,397.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,548.80 : 11,300.80 = 5,609.60 : x
  2. Step 2: Convert to fraction form
    7,548.80/11,300.80 = 5,609.60/x
  3. Step 3: Cross multiply
    7,548.80x = 11,300.80 × 5,609.60
  4. Step 4: Simplify right side
    7,548.80x = 63,392,967.68
  5. Step 5: Solve for x
    x = 63,392,967.68/7,548.80
  6. Step 6: Final answer
    x = 8,397.75

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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.