Home / 8,412.80-12,622.01-3,732.16

Finding the Fourth Proportional to 8,412.80, 12,622.01 and 3,732.16

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Solution

The fourth proportional to 8,412.80, 12,622.01 and 3,732.16 is: 5,599.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.80 : 12,622.01 = 3,732.16 : x
  2. Step 2: Convert to fraction form
    8,412.80/12,622.01 = 3,732.16/x
  3. Step 3: Cross multiply
    8,412.80x = 12,622.01 × 3,732.16
  4. Step 4: Simplify right side
    8,412.80x = 47,107,360.84
  5. Step 5: Solve for x
    x = 47,107,360.84/8,412.80
  6. Step 6: Final answer
    x = 5,599.49

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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.