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Finding the Fourth Proportional to 12,854.03, 17,739.46 and 7,190.65

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Solution

The fourth proportional to 12,854.03, 17,739.46 and 7,190.65 is: 9,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.03 : 17,739.46 = 7,190.65 : x
  2. Step 2: Convert to fraction form
    12,854.03/17,739.46 = 7,190.65/x
  3. Step 3: Cross multiply
    12,854.03x = 17,739.46 × 7,190.65
  4. Step 4: Simplify right side
    12,854.03x = 127,558,212.69
  5. Step 5: Solve for x
    x = 127,558,212.69/12,854.03
  6. Step 6: Final answer
    x = 9,923.60

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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.