Home / 20,664.27-30,984.08-8,186.04

Finding the Fourth Proportional to 20,664.27, 30,984.08 and 8,186.04

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Solution

The fourth proportional to 20,664.27, 30,984.08 and 8,186.04 is: 12,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.27 : 30,984.08 = 8,186.04 : x
  2. Step 2: Convert to fraction form
    20,664.27/30,984.08 = 8,186.04/x
  3. Step 3: Cross multiply
    20,664.27x = 30,984.08 × 8,186.04
  4. Step 4: Simplify right side
    20,664.27x = 253,636,877.31
  5. Step 5: Solve for x
    x = 253,636,877.31/20,664.27
  6. Step 6: Final answer
    x = 12,274.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.