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Finding the Fourth Proportional to 12,608.82, 17,398.98 and 7,303.95

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Solution

The fourth proportional to 12,608.82, 17,398.98 and 7,303.95 is: 10,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.82 : 17,398.98 = 7,303.95 : x
  2. Step 2: Convert to fraction form
    12,608.82/17,398.98 = 7,303.95/x
  3. Step 3: Cross multiply
    12,608.82x = 17,398.98 × 7,303.95
  4. Step 4: Simplify right side
    12,608.82x = 127,081,279.97
  5. Step 5: Solve for x
    x = 127,081,279.97/12,608.82
  6. Step 6: Final answer
    x = 10,078.76

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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.