Home / 12,793.45-17,653.75-7,127.62

Finding the Fourth Proportional to 12,793.45, 17,653.75 and 7,127.62

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Solution

The fourth proportional to 12,793.45, 17,653.75 and 7,127.62 is: 9,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.45 : 17,653.75 = 7,127.62 : x
  2. Step 2: Convert to fraction form
    12,793.45/17,653.75 = 7,127.62/x
  3. Step 3: Cross multiply
    12,793.45x = 17,653.75 × 7,127.62
  4. Step 4: Simplify right side
    12,793.45x = 125,829,221.58
  5. Step 5: Solve for x
    x = 125,829,221.58/12,793.45
  6. Step 6: Final answer
    x = 9,835.44

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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.