Home / 12,385.58-17,100.18-10,122.44

Finding the Fourth Proportional to 12,385.58, 17,100.18 and 10,122.44

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Solution

The fourth proportional to 12,385.58, 17,100.18 and 10,122.44 is: 13,975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.58 : 17,100.18 = 10,122.44 : x
  2. Step 2: Convert to fraction form
    12,385.58/17,100.18 = 10,122.44/x
  3. Step 3: Cross multiply
    12,385.58x = 17,100.18 × 10,122.44
  4. Step 4: Simplify right side
    12,385.58x = 173,095,546.04
  5. Step 5: Solve for x
    x = 173,095,546.04/12,385.58
  6. Step 6: Final answer
    x = 13,975.57

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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.