Home / 12,173.30-18,269.18-8,215.19

Finding the Fourth Proportional to 12,173.30, 18,269.18 and 8,215.19

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Solution

The fourth proportional to 12,173.30, 18,269.18 and 8,215.19 is: 12,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.30 : 18,269.18 = 8,215.19 : x
  2. Step 2: Convert to fraction form
    12,173.30/18,269.18 = 8,215.19/x
  3. Step 3: Cross multiply
    12,173.30x = 18,269.18 × 8,215.19
  4. Step 4: Simplify right side
    12,173.30x = 150,084,784.84
  5. Step 5: Solve for x
    x = 150,084,784.84/12,173.30
  6. Step 6: Final answer
    x = 12,329.01

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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.