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Finding the Fourth Proportional to 6,684.80, 10,027.20 and 6,587.60

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Solution

The fourth proportional to 6,684.80, 10,027.20 and 6,587.60 is: 9,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,684.80 : 10,027.20 = 6,587.60 : x
  2. Step 2: Convert to fraction form
    6,684.80/10,027.20 = 6,587.60/x
  3. Step 3: Cross multiply
    6,684.80x = 10,027.20 × 6,587.60
  4. Step 4: Simplify right side
    6,684.80x = 66,055,182.72
  5. Step 5: Solve for x
    x = 66,055,182.72/6,684.80
  6. Step 6: Final answer
    x = 9,881.40

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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.