Home / 12,342.25-17,032.35-8,622.73

Finding the Fourth Proportional to 12,342.25, 17,032.35 and 8,622.73

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Solution

The fourth proportional to 12,342.25, 17,032.35 and 8,622.73 is: 11,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.25 : 17,032.35 = 8,622.73 : x
  2. Step 2: Convert to fraction form
    12,342.25/17,032.35 = 8,622.73/x
  3. Step 3: Cross multiply
    12,342.25x = 17,032.35 × 8,622.73
  4. Step 4: Simplify right side
    12,342.25x = 146,865,355.32
  5. Step 5: Solve for x
    x = 146,865,355.32/12,342.25
  6. Step 6: Final answer
    x = 11,899.40

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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.