Home / 11,663.68-16,111.26-8,644.98

Finding the Fourth Proportional to 11,663.68, 16,111.26 and 8,644.98

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Solution

The fourth proportional to 11,663.68, 16,111.26 and 8,644.98 is: 11,941.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663.68 : 16,111.26 = 8,644.98 : x
  2. Step 2: Convert to fraction form
    11,663.68/16,111.26 = 8,644.98/x
  3. Step 3: Cross multiply
    11,663.68x = 16,111.26 × 8,644.98
  4. Step 4: Simplify right side
    11,663.68x = 139,281,520.47
  5. Step 5: Solve for x
    x = 139,281,520.47/11,663.68
  6. Step 6: Final answer
    x = 11,941.47

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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.