Home / 12,187.20-16,817.04-9,002.16

Finding the Fourth Proportional to 12,187.20, 16,817.04 and 9,002.16

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Solution

The fourth proportional to 12,187.20, 16,817.04 and 9,002.16 is: 12,422.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.20 : 16,817.04 = 9,002.16 : x
  2. Step 2: Convert to fraction form
    12,187.20/16,817.04 = 9,002.16/x
  3. Step 3: Cross multiply
    12,187.20x = 16,817.04 × 9,002.16
  4. Step 4: Simplify right side
    12,187.20x = 151,389,684.81
  5. Step 5: Solve for x
    x = 151,389,684.81/12,187.20
  6. Step 6: Final answer
    x = 12,422.02

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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.