Home / 12,928.35-17,842.77-7,623.66

Finding the Fourth Proportional to 12,928.35, 17,842.77 and 7,623.66

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Solution

The fourth proportional to 12,928.35, 17,842.77 and 7,623.66 is: 10,521.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.35 : 17,842.77 = 7,623.66 : x
  2. Step 2: Convert to fraction form
    12,928.35/17,842.77 = 7,623.66/x
  3. Step 3: Cross multiply
    12,928.35x = 17,842.77 × 7,623.66
  4. Step 4: Simplify right side
    12,928.35x = 136,027,211.94
  5. Step 5: Solve for x
    x = 136,027,211.94/12,928.35
  6. Step 6: Final answer
    x = 10,521.62

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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.