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Finding the Fourth Proportional to 6,987.76, 10,481.80 and 5,594.64

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Solution

The fourth proportional to 6,987.76, 10,481.80 and 5,594.64 is: 8,392.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.76 : 10,481.80 = 5,594.64 : x
  2. Step 2: Convert to fraction form
    6,987.76/10,481.80 = 5,594.64/x
  3. Step 3: Cross multiply
    6,987.76x = 10,481.80 × 5,594.64
  4. Step 4: Simplify right side
    6,987.76x = 58,641,897.55
  5. Step 5: Solve for x
    x = 58,641,897.55/6,987.76
  6. Step 6: Final answer
    x = 8,392.09

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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.