Home / 12,207.20-18,276.16-8,034.64

Finding the Fourth Proportional to 12,207.20, 18,276.16 and 8,034.64

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Solution

The fourth proportional to 12,207.20, 18,276.16 and 8,034.64 is: 12,029.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.20 : 18,276.16 = 8,034.64 : x
  2. Step 2: Convert to fraction form
    12,207.20/18,276.16 = 8,034.64/x
  3. Step 3: Cross multiply
    12,207.20x = 18,276.16 × 8,034.64
  4. Step 4: Simplify right side
    12,207.20x = 146,842,366.18
  5. Step 5: Solve for x
    x = 146,842,366.18/12,207.20
  6. Step 6: Final answer
    x = 12,029.16

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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.