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Finding the Fourth Proportional to 8,437.54, 12,655.02 and 2,889.60

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Solution

The fourth proportional to 8,437.54, 12,655.02 and 2,889.60 is: 4,333.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.54 : 12,655.02 = 2,889.60 : x
  2. Step 2: Convert to fraction form
    8,437.54/12,655.02 = 2,889.60/x
  3. Step 3: Cross multiply
    8,437.54x = 12,655.02 × 2,889.60
  4. Step 4: Simplify right side
    8,437.54x = 36,567,945.79
  5. Step 5: Solve for x
    x = 36,567,945.79/8,437.54
  6. Step 6: Final answer
    x = 4,333.96

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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.