Home / 14,875.82-20,529.08-8,161.86

Finding the Fourth Proportional to 14,875.82, 20,529.08 and 8,161.86

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Solution

The fourth proportional to 14,875.82, 20,529.08 and 8,161.86 is: 11,263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,875.82 : 20,529.08 = 8,161.86 : x
  2. Step 2: Convert to fraction form
    14,875.82/20,529.08 = 8,161.86/x
  3. Step 3: Cross multiply
    14,875.82x = 20,529.08 × 8,161.86
  4. Step 4: Simplify right side
    14,875.82x = 167,555,436.08
  5. Step 5: Solve for x
    x = 167,555,436.08/14,875.82
  6. Step 6: Final answer
    x = 11,263.61

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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.