Home / 11,309.66-15,608.79-6,342.62

Finding the Fourth Proportional to 11,309.66, 15,608.79 and 6,342.62

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Solution

The fourth proportional to 11,309.66, 15,608.79 and 6,342.62 is: 8,753.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.66 : 15,608.79 = 6,342.62 : x
  2. Step 2: Convert to fraction form
    11,309.66/15,608.79 = 6,342.62/x
  3. Step 3: Cross multiply
    11,309.66x = 15,608.79 × 6,342.62
  4. Step 4: Simplify right side
    11,309.66x = 99,000,623.63
  5. Step 5: Solve for x
    x = 99,000,623.63/11,309.66
  6. Step 6: Final answer
    x = 8,753.63

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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.