Home / 12,622.24-17,427.96-8,148.60

Finding the Fourth Proportional to 12,622.24, 17,427.96 and 8,148.60

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Solution

The fourth proportional to 12,622.24, 17,427.96 and 8,148.60 is: 11,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.24 : 17,427.96 = 8,148.60 : x
  2. Step 2: Convert to fraction form
    12,622.24/17,427.96 = 8,148.60/x
  3. Step 3: Cross multiply
    12,622.24x = 17,427.96 × 8,148.60
  4. Step 4: Simplify right side
    12,622.24x = 142,013,474.86
  5. Step 5: Solve for x
    x = 142,013,474.86/12,622.24
  6. Step 6: Final answer
    x = 11,251.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.