Home / 17,630.40-26,440.56-12,685.44

Finding the Fourth Proportional to 17,630.40, 26,440.56 and 12,685.44

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Solution

The fourth proportional to 17,630.40, 26,440.56 and 12,685.44 is: 19,024.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,630.40 : 26,440.56 = 12,685.44 : x
  2. Step 2: Convert to fraction form
    17,630.40/26,440.56 = 12,685.44/x
  3. Step 3: Cross multiply
    17,630.40x = 26,440.56 × 12,685.44
  4. Step 4: Simplify right side
    17,630.40x = 335,410,137.45
  5. Step 5: Solve for x
    x = 335,410,137.45/17,630.40
  6. Step 6: Final answer
    x = 19,024.53

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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.