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Finding the Fourth Proportional to 8,440.62, 12,657.08 and 3,507.32

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Solution

The fourth proportional to 8,440.62, 12,657.08 and 3,507.32 is: 5,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.62 : 12,657.08 = 3,507.32 : x
  2. Step 2: Convert to fraction form
    8,440.62/12,657.08 = 3,507.32/x
  3. Step 3: Cross multiply
    8,440.62x = 12,657.08 × 3,507.32
  4. Step 4: Simplify right side
    8,440.62x = 44,392,349.00
  5. Step 5: Solve for x
    x = 44,392,349.00/8,440.62
  6. Step 6: Final answer
    x = 5,259.37

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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.