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Finding the Fourth Proportional to 7,104.80, 10,657.20 and 6,701.60

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Solution

The fourth proportional to 7,104.80, 10,657.20 and 6,701.60 is: 10,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.80 : 10,657.20 = 6,701.60 : x
  2. Step 2: Convert to fraction form
    7,104.80/10,657.20 = 6,701.60/x
  3. Step 3: Cross multiply
    7,104.80x = 10,657.20 × 6,701.60
  4. Step 4: Simplify right side
    7,104.80x = 71,420,291.52
  5. Step 5: Solve for x
    x = 71,420,291.52/7,104.80
  6. Step 6: Final answer
    x = 10,052.40

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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.