Home / 21,518.04-29,694.06-12,086.04

Finding the Fourth Proportional to 21,518.04, 29,694.06 and 12,086.04

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Solution

The fourth proportional to 21,518.04, 29,694.06 and 12,086.04 is: 16,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.04 : 29,694.06 = 12,086.04 : x
  2. Step 2: Convert to fraction form
    21,518.04/29,694.06 = 12,086.04/x
  3. Step 3: Cross multiply
    21,518.04x = 29,694.06 × 12,086.04
  4. Step 4: Simplify right side
    21,518.04x = 358,883,596.92
  5. Step 5: Solve for x
    x = 358,883,596.92/21,518.04
  6. Step 6: Final answer
    x = 16,678.27

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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.