Home / 12,845.44-17,714.82-9,861.40

Finding the Fourth Proportional to 12,845.44, 17,714.82 and 9,861.40

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Solution

The fourth proportional to 12,845.44, 17,714.82 and 9,861.40 is: 13,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.44 : 17,714.82 = 9,861.40 : x
  2. Step 2: Convert to fraction form
    12,845.44/17,714.82 = 9,861.40/x
  3. Step 3: Cross multiply
    12,845.44x = 17,714.82 × 9,861.40
  4. Step 4: Simplify right side
    12,845.44x = 174,692,925.95
  5. Step 5: Solve for x
    x = 174,692,925.95/12,845.44
  6. Step 6: Final answer
    x = 13,599.61

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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.