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Finding the Fourth Proportional to 8,427.36, 12,606.48 and 7,027.68

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Solution

The fourth proportional to 8,427.36, 12,606.48 and 7,027.68 is: 10,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.36 : 12,606.48 = 7,027.68 : x
  2. Step 2: Convert to fraction form
    8,427.36/12,606.48 = 7,027.68/x
  3. Step 3: Cross multiply
    8,427.36x = 12,606.48 × 7,027.68
  4. Step 4: Simplify right side
    8,427.36x = 88,594,307.37
  5. Step 5: Solve for x
    x = 88,594,307.37/8,427.36
  6. Step 6: Final answer
    x = 10,512.70

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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.