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Finding the Fourth Proportional to 17,907.68, 26,861.52 and 5,427.60

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Solution

The fourth proportional to 17,907.68, 26,861.52 and 5,427.60 is: 8,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,907.68 : 26,861.52 = 5,427.60 : x
  2. Step 2: Convert to fraction form
    17,907.68/26,861.52 = 5,427.60/x
  3. Step 3: Cross multiply
    17,907.68x = 26,861.52 × 5,427.60
  4. Step 4: Simplify right side
    17,907.68x = 145,793,585.95
  5. Step 5: Solve for x
    x = 145,793,585.95/17,907.68
  6. Step 6: Final answer
    x = 8,141.40

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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.