Home / 15,309.90-21,126.09-8,596.27

Finding the Fourth Proportional to 15,309.90, 21,126.09 and 8,596.27

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Solution

The fourth proportional to 15,309.90, 21,126.09 and 8,596.27 is: 11,861.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.90 : 21,126.09 = 8,596.27 : x
  2. Step 2: Convert to fraction form
    15,309.90/21,126.09 = 8,596.27/x
  3. Step 3: Cross multiply
    15,309.90x = 21,126.09 × 8,596.27
  4. Step 4: Simplify right side
    15,309.90x = 181,605,520.87
  5. Step 5: Solve for x
    x = 181,605,520.87/15,309.90
  6. Step 6: Final answer
    x = 11,861.97

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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.