Home / 11,339.76-15,647.25-6,623.13

Finding the Fourth Proportional to 11,339.76, 15,647.25 and 6,623.13

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Solution

The fourth proportional to 11,339.76, 15,647.25 and 6,623.13 is: 9,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.76 : 15,647.25 = 6,623.13 : x
  2. Step 2: Convert to fraction form
    11,339.76/15,647.25 = 6,623.13/x
  3. Step 3: Cross multiply
    11,339.76x = 15,647.25 × 6,623.13
  4. Step 4: Simplify right side
    11,339.76x = 103,633,770.89
  5. Step 5: Solve for x
    x = 103,633,770.89/11,339.76
  6. Step 6: Final answer
    x = 9,138.97

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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.