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Finding the Fourth Proportional to 12,830.44, 17,707.46 and 7,241

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Solution

The fourth proportional to 12,830.44, 17,707.46 and 7,241 is: 9,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830.44 : 17,707.46 = 7,241 : x
  2. Step 2: Convert to fraction form
    12,830.44/17,707.46 = 7,241/x
  3. Step 3: Cross multiply
    12,830.44x = 17,707.46 × 7,241
  4. Step 4: Simplify right side
    12,830.44x = 128,219,717.86
  5. Step 5: Solve for x
    x = 128,219,717.86/12,830.44
  6. Step 6: Final answer
    x = 9,993.40

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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.