Home / 21,162.37-29,204.99-12,662.86

Finding the Fourth Proportional to 21,162.37, 29,204.99 and 12,662.86

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Solution

The fourth proportional to 21,162.37, 29,204.99 and 12,662.86 is: 17,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.37 : 29,204.99 = 12,662.86 : x
  2. Step 2: Convert to fraction form
    21,162.37/29,204.99 = 12,662.86/x
  3. Step 3: Cross multiply
    21,162.37x = 29,204.99 × 12,662.86
  4. Step 4: Simplify right side
    21,162.37x = 369,818,798.85
  5. Step 5: Solve for x
    x = 369,818,798.85/21,162.37
  6. Step 6: Final answer
    x = 17,475.30

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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.